{"title":"Hanna Instruments","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eGet lab-grade water testing results right at home with Hanna Instruments — a trusted name in precision reef monitoring. Whether you're maintaining a nano tank or a large SPS system, accurate water parameters are the foundation of coral health and stability. Hanna’s line of digital testers, handheld colorimeters, and all-in-one kits make testing faster, easier, and more consistent than traditional methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAt Top Shelf Aquatics, we carry the full range of Hanna Instruments for saltwater aquariums — including the Marine Master Test Kit, individual digital checkers, and replacement reagents. Designed for simplicity and reliability, Hanna testers eliminate the guesswork from color comparisons and provide clear numerical readouts that make dosing and adjustments more precise.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"marine-master-waterproof-wireless-multiparameter-photometer-hanna-instruments","title":"Marine Master Waterproof Wireless Multiparameter Photometer - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cstrong\u003eOne Meter to Rule them All-- Now with Bluetooth!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAccurately check pH, Alkalinity, Calcium, Low Range and High Range Nitrate, Ultra Low Range Nitrite, and Ultra Low Range Phosphate with one single, compact multiparameter tester. Then use the integrated Bluetooth to connect to the Hanna Lab App (via a compatible smart device) where you can log your results, add notes, share your data, and create method groups for future testing.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAll-In-One Testing with Precise Results for Reef Tanks\u003c\/strong\u003e\u003cbr\u003eThe HI97115 Marine Master Photometer is a waterproof tester that combines accuracy and ease of use into one simple, portable design. Now with Bluetooth capability, you can easily log and save your results in the Hanna Lab App. Its advanced, lab-quality optical system ensures accurate readings while its user-friendly design and built-in tutorials make it perfect for marine scientists and aquarium hobbyists alike.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest 9 parameters with a single unit\u003c\/li\u003e\n\u003cli\u003ePrecise and advanced LED optical system\u003c\/li\u003e\n\u003cli\u003eWaterproof and floating IP67 meter design\u003c\/li\u003e\n\u003cli\u003eBacklit LCD and on-screen help guides\u003c\/li\u003e\n\u003cli\u003eBuilt in reaction timer for consistent testing\u003c\/li\u003e\n\u003cli\u003eCAL Check validation and calibration\u003c\/li\u003e\n\u003cli\u003eAuto-data logging to easily record results\u003c\/li\u003e\n\u003cli\u003eOption to track which aquarium measurements are from for multi-tank homes\u003c\/li\u003e\n\u003cli\u003eAuto shut-off\u003c\/li\u003e\n\u003cli\u003eLocking system to hold cuvettes in same position every test\u003c\/li\u003e\n\u003cli\u003eRugged carrying case included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrecise Laboratory Testing, Simplified\u003c\/strong\u003e\u003cbr\u003eThe Marine Master Photometer comes equipped with user-friendly on-screen tutorials and animations to help guide you through every step of setup, calibration, and testing. You can easily access this Tutorial Mode at any stage of the setup or measurement process by tapping the dedicated Help key.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSmart Energy Use\u003c\/strong\u003e\u003cbr\u003eWhen the battery level is below 10%, a warning symbol will blink to indicate low battery condition. When low battery power may affect your results, the meter will shut down to avoid erroneous readings caused by low battery level. In order to preserve battery life, the Marine Master has an Auto-Off feature that will automatically power down the device after 15 minutes of inactivity.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuto Data Logging\u003c\/strong\u003e\u003cbr\u003eThe Marine Master will automatically log your results, so there is no need to worry if you’ve missed recording a measurement. The last 50 measurements can be instantly viewed using the Log Recall Menu.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCAL Check Validation\u003c\/strong\u003e\u003cbr\u003eHanna’s exclusive CAL Check feature provides a stress-free, straightforward way to ensure your photometer is working properly. Simply insert the certified CAL Check standards and let your meter guide you through validation. If your photometer is out of specification for any reason, simply calibrate to your standard.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Optical System\u003c\/strong\u003e\u003cbr\u003eThe Marine Master has an advanced optical system that uses a Light Emitting Diode (LED) and a narrow band interference filter that allows for accurate and repeatable readings. The internal reference system of the photometer compensates for any drifts due to power fluctuations or ambient temperature changes, providing a stable source of light for the blank (zero) measurement and sample measurement. Improved optical filters ensure greater wavelength accuracy and allow a brighter, stronger signal to be received. A focusing lens collects all of the light that exits the cuvette, eliminating errors from cuvette imperfections and scratches. The end result is highly reliable lab-grade readings in the palm of your hand.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable \u0026amp; Portable Design\u003c\/strong\u003e\u003cbr\u003eDesigned to withstand the knocks, drops, and spills of real life, the new IP67 body ensures top performance in any environment. Internal optics are sealed from outside dust, dirt, and water. The meter also floats, so you can easily retrieve it if you drop it in water. This photometer uses an exclusive positive‑locking system to ensure that the cuvettes are placed into the holder in the same position for accurate readings every time.\u003c\/p\u003e\n\u003cp\u003eThe Marine Master also fits comfortably in your hand for on-the-go testing. The supplied AA batteries provide life for more than 800 measurements, and its backlit LCD display can provide readings from any angle, day or night. Everything you need for testing comes neatly stored in the provided durable carrying-case for added convenience.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat’s Included?\u003c\/strong\u003e\u003cbr\u003e1x HI97115 Photometer\u003cbr\u003e1x\u003cspan\u003e \u003c\/span\u003eHI780-25 Marine pH reagent\u003cspan\u003e \u003c\/span\u003e(30mL)\u003cbr\u003e1x\u003cspan\u003e \u003c\/span\u003eHI772-26 Marine Alkalinity reagent\u003cspan\u003e \u003c\/span\u003e(30mL)\u003cbr\u003e1x\u003cspan\u003e \u003c\/span\u003eHI7581U Marine Calcium reagent A\u003cspan\u003e \u003c\/span\u003e(30mL)\u003cbr\u003e1x\u003cspan\u003e \u003c\/span\u003eHI7582 Marine Calcium reagent B starter kit\u003cspan\u003e \u003c\/span\u003e(reagent for 25 tests)\u003cbr\u003e1x\u003cspan\u003e \u003c\/span\u003eHI782-25 Marine Nitrate High Range starter kit\u003cspan\u003e \u003c\/span\u003e(reagent for 25 tests)\u003cbr\u003e1x\u003cspan\u003e \u003c\/span\u003eHI764-25 Marine Nitrite Ultra Low Range starter kit\u003cspan\u003e \u003c\/span\u003e(reagent for 25 tests)\u003cbr\u003e1x\u003cspan\u003e \u003c\/span\u003eHI774-25 Marine Phosphate Ultra Low Range starter kit\u003cspan\u003e \u003c\/span\u003e(reagent for 25 tests)\u003cbr\u003e2x Sample cuvettes and caps\u003cbr\u003e2x 1mL Graduated syringes with tips\u003cbr\u003e1x Mini Pipette with tip\u003cbr\u003e2x 3mL Pasteur pipettes\u003cbr\u003e3x 1.5V AA alkaline batteries\u003cbr\u003e1x Cleaning cloth for wiping cuvettes\u003cbr\u003e1x Scissors\u003cbr\u003e1x Instrument quality certificate\u003cbr\u003e1x Instruction manual\u003cbr\u003e1x Hard carrying case\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117815832874,"sku":"Y891906","price":424.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-marine-master-waterproof-wireless-multiparameter-photometer-hanna-instruments-1146230370.png?v=1742308694"},{"product_id":"cuvettes-pair-hanna-instruments","title":"Cuvettes Pair - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI731315 are spare glass cuvettes and plastic caps used with the HI7XX Checker® HC colorimeters. Each cuvette has a 10 ml level mark to measure the appropriate volume. The HI731315 includes 2 cuvettes and 2 caps.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10 ml level mark for adding correct volume.\u003c\/li\u003e\n\u003cli\u003eTest more samples and average your results for the best accuracy.\u003c\/li\u003e\n\u003cli\u003ePerfect for replacing scratched or discolored cuvettes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eWhen using a colorimeter or photometer it is important to use clean cuvettes that are free from scratches. Any discoloration or scratches will interfere with any optically based measurement. The HI731315 are the replacement glass cuvettes that are supplied with the \u003c\/span\u003eChecker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC colorimeters\u003cspan\u003e. If you need extra cuvettes to test more samples or are looking to replace the cuvettes that came with your Checker, this set comes with two cuvettes with caps.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117832479018,"sku":"L856727","price":13.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-cuvettes-pair-hanna-instruments-1146290172.jpg?v=1743594007"},{"product_id":"copper-high-range-checker-colorimeter-hanna-instruments","title":"Copper High Range Checker - Colorimeter - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eDon't worry about the subjectivity of color charts, trust our handheld colorimeter for accurate measurements for your water testing. Get better accuracy than a standard test kit with our high range copper colorimeter . Our handheld colorimeter eliminates the effort of matching to a color chart by delivering a direct copper result digitally.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimple, one-button operation makes getting your copper results a snap.\u003c\/li\u003e\n\u003cli\u003eQuickly get your results without using a color chart.\u003c\/li\u003e\n\u003cli\u003eCompatible with fresh or saltwater!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe HI702 Checker\u003csup\u003e®\u003cspan\u003e \u003c\/span\u003e\u003c\/sup\u003eHC (Handheld Colorimeter) is a simple, accurate, and cost effective way to measure high ranges of copper. Designed as a more accurate alternative to chemical test kits, the HI702 provides quick, accurate results in a few easy steps.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFeatures at-a-glance:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003eIdeal for: Water quality, Environmental, Plating, Education\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117832773930,"sku":"960813V","price":63.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-copper-high-range-checker-colorimeter-hanna-instruments-1146290149.jpg?v=1743593639"},{"product_id":"checker-ph-tester-0-1-ph-resolution-hanna-instruments","title":"Checker pH Tester - 0.1 pH Resolution - Hanna Instruments","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDesigned to bring simplicity to pH testing during the any process, the HI98103 Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003epH Tester is designed for direct measurement. A replaceable electrode extends the life of your tester.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e±0.2 pH accuracy\u003c\/li\u003e\n\u003cli\u003eComes with all the necessary solutions and batteries- everything you need to get started measuring right away.\u003c\/li\u003e\n\u003cli\u003eGreat for all brewers, from professional to home brewers!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eBetter Features for Better Testing\u003c\/h4\u003e\n\u003cp\u003eAn onscreen stability indicator ensures the highest level of confidence in your results. The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003ePocket Sized\u003c\/h4\u003e\n\u003cp\u003eThe compact size makes the HI98103 Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003epH tester ideal for on-the-go testing. A large LCD display provides at-a-glance readings from any angle and single button operation streamlines the testing process for any user.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eLong Battery Life\u003c\/h4\u003e\n\u003cp\u003eThe included CR2032 Li-ion battery provides up to 1000 hours of continuous use. The battery icon will blink to let you know it is time to change the battery so you never miss a measurement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117832806698,"sku":"757509K","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-checker-ph-tester-0-1-ph-resolution-hanna-instruments-1146290232.jpg?v=1743595098"},{"product_id":"copper-high-range-reagent-25-pack-hanna-instruments","title":"Copper High Range Reagent - 25 Tests - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI702-25 are the replacement reagents for the HI702 Copper High Range Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_12054511353\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"module\"\u003e\n\u003csection class=\"banner--product-rich-text\"\u003e\n\u003cdiv class=\"grid-container\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y align-center\"\u003e\n\u003cdiv class=\"cell small-12 large-10\"\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_12054511353_\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_inline_rich_text\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"inline_rich_text\" data-hs-cos-field=\"content\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe HI702-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Copper High Range Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC. These reagents follow the Bicinchoninate Method in which the reaction between copper and the reagent causes a purple tint in the sample. By simply adding the packet of HI702-25 reagent to the sample, the reaction will take place and the HI702 will determine the concentration from the color that is produced. The results will be displayed in ppm of copper. These reagents are designed to be used with samples that have an expected range of 0.00 to 5.00 ppm copper.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117832839466,"sku":"843172V","price":16.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-copper-high-range-reagent-25-pack-hanna-instruments-1146290300.jpg?v=1743596291"},{"product_id":"salinity-calibration-sachet-35-ppt-hanna-instruments","title":"Salinity Calibration Sachet - 35 PPT - Hanna Instruments","description":"\u003cp\u003eHI70024P is a premium quality 35.00 ppt salinity calibration solution that is NIST traceable and contained in portable single-use sachets. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of calibration solutions have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI70024P is for 25 sachets containing 20 mL of solution. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e35.00 ppt @ 25°C salinity value.\u003c\/li\u003e\n\u003cli\u003eTemperature chart of the actual ppt value at various temperatures printed on each sachet\u003c\/li\u003e\n\u003cli\u003eConvenient packaging for one time use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eHI70024P is a premium quality 35.00 ppt salinity calibration solution standardized with a conductivity meter that has been calibrated with potassium chloride NIST 2202 SRM (Standard Reference Material) in deionized water for analytical use in accordance with ISO 3696\/BS3978. Additional equipment used in preparation of the solutions include certified weight-checked balances, Class A glassware and certified thermometers.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eConvenience of individual packaging\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for users that do not calibrate frequently\u003c\/li\u003e\n\u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e\n\u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e\n\u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the value\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e \u003c\/h4\u003e\n\u003ch4\u003eEach sachet marked with lot number and expiration date\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHanna solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened sachet.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117832937770,"sku":"4278116","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-salinity-calibration-sachet-35-ppt-hanna-instruments-1146227846.png?v=1742250967"},{"product_id":"marine-salinity-tester-hanna-instruments","title":"Marine Salinity Tester - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eDesigned to bring simplicity to salinity testing during the any process, the HI98319 Marine Salinity Tester measures conductivity (EC) to determine the salinity of natural and artificial seawater. Within seconds, the salinity and temperature are digitally displayed on the LCD.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDisplays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eComes with all the necessary solutions and batteries- everything you need to get started measuring right away.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for testing salinity in aquariums, field, and industrial settings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eBetter Features for Better Testing\u003c\/h4\u003e\n\u003cp\u003eAn onscreen stability indicator ensures the highest level of confidence in your results. The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003e \u003c\/h4\u003e\n\u003ch4\u003ePocket Sized\u003c\/h4\u003e\n\u003cp\u003eThe compact size makes the HI98319 Marine Salinity Tester ideal for on-the-go testing. The multilevel LCD display provides at-a-glance salinity and temperature readings from any angle while dual button operation streamlines the testing process for any user.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003e \u003c\/h4\u003e\n\u003ch4\u003eLong Battery Life\u003c\/h4\u003e\n\u003cp\u003eThe included CR2032 Li-ion battery provides up to 100 hours of continuous use. The battery icon will blink to let you know it is time to change the battery so you never miss a measurement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117832970538,"sku":"511701X","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-marine-salinity-tester-hanna-instruments-1146290252.jpg?v=1743595455"},{"product_id":"digital-refractometer-for-seawater-analysis-hi96822-hanna-instruments","title":"Digital Refractometer for Seawater Analysis - HI96822 - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per thousands (ppt) and specific gravity (S.G. (20\/20)). The instrument's high accuracy and simple operation gives reliable results each and every time. All readings are automatically compensated for temperature variations and displayed within a 1.5 second response time. The sealed flint glass prism and stainless steel well are easy to clean. Just wipe with a soft cloth in preparation for the next sample. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSample size as small as 2 metric drops (100 μl)\u003c\/li\u003e\n\u003cli\u003eSealed stainless steel well with high-grade optical prism made of flint glass\u003c\/li\u003e\n\u003cli\u003eFast 1.5 second response time for temperature compensated readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cp\u003eThe HI96822 Digital Refractometer eliminates the uncertainty associated with mechanical refractometers by measuring the refractive index to determine the salinity of natural and artificial seawater including brackish, ocean water or saltwater aquarium. The instrument converts the refractive index of a sample to PSU, ppt and specific gravity. These conversions are based on respected scientific publications using the physical properties of seawater (not sodium chloride). The HI96822 is an easy to use tool for measuring salinity in natural and artificial seawater whether in the field, lab or at home.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for seawater salinity analysis (not NaCl)\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003eHigh accuracy measurements displayed as PSU, ppt and specific gravity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eMaking a Standard Solution\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSodium Chloride solutions can be used to check the accuracy of the meter. The table below lists two Sodium Chloride solutions and their expected ppt Seawater value.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTo make a Standard NaCl Solution (g\/100 g), follow the procedure below\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlace container (such as a glass vial or dropper bottle that has a cover) on an analytical balance.\u003c\/li\u003e\n\u003cli\u003eTare the balance.\u003c\/li\u003e\n\u003cli\u003eTo make an X NaCl solution weigh out X grams of high purity dried Sodium Chloride (CAS #: 7647-14-5: MW 58.44) directly into the container.\u003c\/li\u003e\n\u003cli\u003eAdd distilled or deionized water to the beaker so the total weight of the solution is 100g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eExample Standard NaCl Solution\u003c\/p\u003e\n\u003ctable border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNaCl (g)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWater (g)\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTotal\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eExpected Seawater value (ppt)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e3.5% NaCl\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e96.50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.000\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e34\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e10% NaCl\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10.00\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e90.00\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.000\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e96\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833003306,"sku":"1524185","price":212.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-digital-refractometer-for-seawater-analysis-hi96822-hanna-instruments-1146290214.jpg?v=1743594848"},{"product_id":"ammonia-marine-reagent-25-pack-hanna-instruments","title":"Ammonia Marine - Reagent 25 Pack - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI784-25 includes the three replacement reagents needed for the Marine Ammonia Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC - HI784. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe HI784-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Ammonia Checker\u003c\/span\u003e\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e HC. These reagents follow the \u003c\/span\u003e\u003cspan\u003ecolorimetric salicylate method . The reaction between ammonia, ammonium, and the reagent causes a blue-green tint in the sample. By adding the HI784A-0 Reagent A, HI784B-0, and HI784C-0 to the sample, the reaction will take place and the HI784 will determine the concentration from the color that is produced. \u003c\/span\u003e\u003cspan\u003eThe results will be displayed in ppm of Ammonia. These reagents are designed to be used with saltwater samples that have an expected range of 0.00 to 2.50 ppm.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833068842,"sku":"1532443","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-ammonia-marine-reagent-25-pack-hanna-instruments-1146290222.jpg?v=1743594971"},{"product_id":"nitrate-high-range-reagent-25-pack-hanna-instruments","title":"Nitrate High Range Reagent - 25 Tests - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI782-25 are the replacement reagents for the HI782 Marine Nitrate High Range Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe HI782-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Nitrate High Range Checker\u003c\/span\u003e\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e HC. These reagents follow the Zinc reduction method in which the reaction between nitrate and the reagent causes a pink tint in the sample. By simply adding the packet of HI782-25 reagent to the sample, the reaction will take place and the HI782 will determine the concentration from the color that is produced. The results will be displayed in ppm of nitrate (as NO3–). These reagents are designed to be used with saltwater samples that have an expected range of 0.0 to 75.0 ppm.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833036074,"sku":"Z349129","price":22.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-nitrate-high-range-reagent-25-pack-hanna-instruments-1146290208.jpg?v=1743594729"},{"product_id":"nitrate-high-range-checker-colorimeter-hanna-instruments","title":"Nitrate High Range Checker - Colorimeter - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHI782 Marine Nitrate High Range Colorimeter\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital read out, there is no more struggling to determine colors visually.\u003c\/p\u003e\n\u003cp\u003e• Measurements with a range up to 75.0ppm\u003cbr\u003e• Less complex laboratory grade accuracy - Requires only 1 reagent\u003cbr\u003e• Simple, intuitive digital operation\u003cbr\u003e• Compact and precise whether at home, at work, or on-the-go\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv data-hs-cos-type=\"module\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" id=\"hs_cos_wrapper_widget_1619529291965\"\u003e\n\u003csection class=\"banner--product-rich-text\"\u003e\n\u003cdiv class=\"grid-container\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y align-center\"\u003e\n\u003cdiv class=\"cell small-12 large-10\"\u003e\n\u003cdiv data-hs-cos-field=\"content\" data-hs-cos-type=\"inline_rich_text\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_inline_rich_text\" id=\"hs_cos_wrapper_widget_1619529291965_\"\u003e\n\u003cp\u003eNitrate is the final step in the Nitrogen cycle. Excessive amounts of nitrates in saltwater aquariums facilitate the growth of undesirable organisms such as algae and dinoflagellates. The HI782 is a simple, accurate, and cost-effective way to measure nitrate from 0.0 to 75.0 ppm (as NO\u003csub\u003e3\u003c\/sub\u003e–) in your saltwater aquarium.\u003cbr\u003e\u003cbr\u003eThe HI782 Nitrate Checker HC uses the Zinc Reduction method to measure the concentration of nitrate colorimetrically. The HI782 provides quick, accurate results in four easy steps:\u003c\/p\u003e\n\u003cp\u003e\u003cimg sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/checker1234-1.jpg?width=400\u0026amp;name=checker1234-1.jpg 400w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/checker1234-1.jpg?width=800\u0026amp;name=checker1234-1.jpg 800w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/checker1234-1.jpg?width=1200\u0026amp;name=checker1234-1.jpg 1200w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/checker1234-1.jpg?width=1600\u0026amp;name=checker1234-1.jpg 1600w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/checker1234-1.jpg?width=2000\u0026amp;name=checker1234-1.jpg 2000w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/checker1234-1.jpg?width=2400\u0026amp;name=checker1234-1.jpg 2400w\" loading=\"lazy\" width=\"800\" alt=\"checker1234-1\" src=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/checker1234-1.jpg?width=800\u0026amp;name=checker1234-1.jpg\"\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures at-a-glance:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor use with saltwater samples.\u003c\/li\u003e\n\u003cli\u003eMore accurate than chemical test kits.\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter.\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience.\u003c\/li\u003e\n\u003cli\u003eNo errors with a digital readout.\u003c\/li\u003e\n\u003cli\u003eIdeal for aquariums and marine biology applications.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan\u003e\u003cstrong\u003eHI782 High Range Nitrate Checker vs HI781 Low Range Nitrate Checker\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003eThe HI782 was designed to quickly and easily measure nitrate levels for aquarists with higher-than-average nutrient levels. This includes saltwater aquariums that are fish-only or have corals that can tolerate elevated levels of nitrate at 30 ppm or more.\u003cbr\u003e\u003cbr\u003eVery low levels of nitrate are critical for many saltwater reef aquariums, as nitrate can cause damage and possible death to certain delicate corals and invertebrates. For this reason, the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.hannainst.com\/marine-nitrate-checker-hi781.html?hsLang=en\" target=\"_blank\"\u003eHI781\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eoffers unmatched precision in the measurement of very low levels of nitrate (0.00 to 5.00 ppm). For freshwater samples, Hanna Instruments recommends using the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.hannainst.com\/nitrate-photometer-hi97728.html?hsLang=en\" target=\"_blank\"\u003eHI97728 Nitrate Portable Photometer\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833101610,"sku":"Y008814","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-nitrate-high-range-checker-colorimeter-hanna-instruments-1146290283.jpg?v=1743596042"},{"product_id":"ph-electrode-storage-solution-230-ml-hanna-instruments","title":"pH Electrode Storage Solution (230 mL) - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eHI70300M is an electrode storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. Properly storing your pH electrode in a solution keeps the glass membrane well hydrated which maintains proper function and provides accurate readings.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpecial formulation to minimize bacterial growth on your electrode.\u003c\/li\u003e\n\u003cli\u003eClearly marked expiration date and lot number for traceability.\u003c\/li\u003e\n\u003cli\u003eDesigned for storing any pH or ORP electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eHI70300L is a specially formulated electrode storage solution that can be used to store your pH electrode*. To ensure the best response time, the sensor tip and the reference junction of the pH electrode should be kept moist when not in use. Placing the pH electrode in a small glass filled with storage solution or replacing the solution in the protective cap is an easy way to store the electrode. The HI70300L should also be used to rehydrate the electrode after cleaning by soaking for at least one hour before taking measurements.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eAir tight bottle with a tamper-proof seal\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEnsures quality and freshness of solution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eEach bottle marked with lot number and expiration date.\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHanna pH storage solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833134378,"sku":"HI70300M","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-ph-electrode-storage-solution-230-ml-hanna-instruments-1146290176.jpg?v=1743594018"},{"product_id":"ammonia-marine-checker-colorimeter-hanna-instruments","title":"Ammonia Marine Checker - Colorimeter - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eOur Marine Ammonia Checker® HC (HI784) is designed to accurately and quickly determine the ammonia level in marine (saltwater) samples. The digital readout makes measurements effortless.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRange: 0.00 to 2.50 ppm (mg\/L) NH3\u003c\/li\u003e\n\u003cli\u003eBuilt-in timer so you don't miss a step\u003c\/li\u003e\n\u003cli\u003eSaltwater Compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-hs-cos-type=\"module\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" id=\"hs_cos_wrapper_widget_1651059693166\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOur Ammonia Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC (HI784) provides an uncomplicated, highly accurate, and budget-friendly way to measure ammonia (NH\u003csub\u003e3\u003c\/sub\u003e\/NH\u003csub\u003e4\u003c\/sub\u003e\u003csup\u003e+\u003c\/sup\u003e) in saltwater\/marine environments.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAmmonia is naturally found as part of the nitrogen cycle of a tank as aquarium organisms produce it as waste. In a balanced tank, the majority of ammonia is consumed by bacteria and the nitrogen cycle continues. When out of balance, ammonia toxicity can wreak havoc on tank inhabitants. It is important to monitor ammonia levels to ensure they remain steady and low. The ammonia checker is designed as an exceptionally accurate alternative to chemical test kits, our Marine Ammonia Checker (HI784) provides quick, accurate results in a few easy steps.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures at-a-glance\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSimple and accurate digital test for small, trace amounts of ammonia\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasier to use and more accurate than chemical test kits\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDedicated to a single parameter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSmall size, big convenience\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eIdeal for: Saltwater Aquariums, Marine, and Aquaculture Applications\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-hs-cos-type=\"module\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" id=\"hs_cos_wrapper_widget_1651059475970\"\u003e\u003cspan data-hs-cos-type=\"linked_image\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_linked_image\" id=\"hs_cos_wrapper_widget_1651059475970_\"\u003e\u003cimg loading=\"lazy\" title=\"QR784_03_22-1\" alt=\"QR784_03_22-1\" class=\"hs-image-widget\" src=\"https:\/\/www.hannainst.com\/hubfs\/002-campaign\/HI783-HI784-Launch-2022\/QR784_03_22-1.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-hs-cos-type=\"module\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" id=\"hs_cos_wrapper_widget_1651059551689\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv data-hs-cos-type=\"module\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\"\u003e \u003c\/div\u003e\n\u003cdiv data-hs-cos-type=\"module\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" id=\"hs_cos_wrapper_widget_1651060524447\"\u003e\n\u003csection class=\"banner--product-rich-text\"\u003e\n\u003cdiv class=\"grid-container\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y align-center callout\"\u003e\n\u003cdiv class=\"cell small-12 large-10\"\u003e\n\u003ch5\u003e\u003cstrong\u003eAmmonia Checker Tips \u0026amp; Tricks for Accurate Measurements\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the sample does not contain any debris.\u003c\/li\u003e\n\u003cli\u003eHold dropper bottles completely vertically and squeeze slowly to ensure correct drop size.\u003c\/li\u003e\n\u003cli\u003eWhenever the cuvette is placed into the checker, it must be dry outside and free of fingerprints, oil and dirt.\u003c\/li\u003e\n\u003cli\u003eWipe the cuvette thoroughly with\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.hannainst.com\/hi731318-microfiber-cloth-for-cuvettes.html?hsLang=en\" target=\"_blank\"\u003eHI731318\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003emicrofiber cleaning cloth or a lint-free cloth prior to insertion.\u003c\/li\u003e\n\u003cli\u003eShaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.\u003c\/li\u003e\n\u003cli\u003eDo not let the reacted sample stand too long after reagent has been added, as accuracy will be affected.\u003c\/li\u003e\n\u003cli\u003eDiscard the sample immediately after the reading has been taken or the glass might become permanently stained.\u003c\/li\u003e\n\u003cli\u003ePrepare sample cuvette immediately after collecting sample from tank. Ammonia is volatile and will dissipate if stored in a bottle before analysis, causing low measurements.\u003c\/li\u003e\n\u003cli\u003eIf the prepared sample cuvette becomes cloudy the measurement will not be accurate. Prepare a new sample by adding an extra 1-2 drops of HI784A-0 Reagent A.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833199914,"sku":"9730257","price":63.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-ammonia-marine-checker-colorimeter-hanna-instruments-1146290273.jpg?v=1743595814"},{"product_id":"marine-magnesium-25-pack-reagent-hanna-instruments-1","title":"Marine Magnesium - 25 Pack Reagent - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI783-25 are the replacement reagents for the Marine Magnesium Checker\u003cspan\u003e®\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eHC - HI783. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe HI783-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Magnesium Checker\u003c\/span\u003e\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e HC. These reagents follow the \u003c\/span\u003e\u003cspan\u003ecolorimetric EDTA method using calmagite indicator\u003c\/span\u003e\u003cspan\u003e in which the reaction between magnesium and the reagent causes a \u003c\/span\u003e\u003cspan\u003eblue to violet tint in the sample\u003c\/span\u003e\u003cspan\u003e. By simply adding the packet of HI783-25 reagent to the sample, the reaction will take place and the HI783 will determine the concentration from the color that is produced. The results will be displayed in ppm of Magnesium. These reagents are designed to be used with saltwater samples that have an expected range of 1,000 to 1,800 ppm.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833363754,"sku":"663653W","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-marine-magnesium-25-pack-reagent-hanna-instruments-1146290119.webp?v=1743597965"},{"product_id":"calcium-hi758-25-reagent-25-tests-hanna-instruments","title":"Calcium Reagent - 25 Tests - Hanna Instruments","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe HI758U-26 are the replacement reagents for the HI758 Marine Calcium Checker® HC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe HI758U-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Calcium Checker\u003c\/span\u003e\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e HC. These reagents follow the Zincon Method in which the reaction causes a blue tint in the sample. By simply adding 1 mL of the first reagent to the sample, followed by a packet of the second reagent in the HI758U-26 set, the reaction will take place and the HI758 will determine the concentration from the color that is produced. The results will be displayed in ppm of calcium. These reagents are designed to be used with samples that have an expected range of 200 to 600 ppm calcium.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833396522,"sku":"418123N","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-calcium-hi758-25-reagent-25-tests-hanna-instruments-1146290240.jpg?v=1743595320"},{"product_id":"phosphorus-ultra-low-range-checker-colorimeter-hanna-instruments","title":"Phosphorus Ultra-Low Range Checker - Colorimeter - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eGet accurate results for your saltwater aquarium with our simple handheld colorimeter. Our ultra low range phosphorus colorimeter brings you more precise technology from your typical chemical test kit. Standard test kits have limited accuracy since they rely on the user to match colors. Our handheld colorimeter makes your life easier by eliminating color matching and providing you a direct saltwater phosphorus result. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTake our portable handheld colorimeter anywhere.\u003c\/li\u003e\n\u003cli\u003eSimple, one-button design makes getting your results easy.\u003c\/li\u003e\n\u003cli\u003eImprove your technology and upgrade from your standard test kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe HI736 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphorus in marine systems including reef tanks. Phosphorus is an important parameter to measure in aquaculture and aquariums; levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life. Designed as a more accurate alternative to chemical test kits, the HI736 provides quick, accurate results in a few easy steps.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eFeatures at-a-glance:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003eIdeal for: Aquariums, Environmental, Aquaculture, Water Quality\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833429290,"sku":"785889N","price":63.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-phosphorus-ultra-low-range-checker-colorimeter-hanna-instruments-1146290256.jpg?v=1743595565"},{"product_id":"ph-calibration-solution-10-01-hanna-instruments","title":"pH Calibration Solution - 10.01 - Hanna Instruments","description":"\u003cp data-mce-fragment=\"1\"\u003eHI70010P is a premium quality pH 10.01 calibration buffer solution. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI70010P is for 25 sachets containing 20 mL of buffer.  I70010P is a premium quality pH 10.01 calibration buffer produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers. Reported values are accurate to +\/- 0.01 pH @ 25\u003csup data-mce-fragment=\"1\"\u003e°\u003c\/sup\u003eC and are traceable to NIST Standard Reference Materials (SRMs).\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\" style=\"font-weight: 500;\" data-mce-style=\"font-weight: 500;\"\u003eConvenience of individual packaging\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIdeal for users that do not calibrate frequently\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIdeal for field use due to portability\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\" style=\"font-weight: 500;\" data-mce-style=\"font-weight: 500;\"\u003e \u003c\/h3\u003e\n\u003ch3 data-mce-fragment=\"1\" style=\"font-weight: 500;\" data-mce-style=\"font-weight: 500;\"\u003eEach sachet marked with lot number and expiration date.\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHanna buffers are specially formulated to have an expiration of 5 years from manufacture for an unopened sachet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\" style=\"font-weight: 500;\" data-mce-style=\"font-weight: 500;\"\u003e  \u003c\/h3\u003e\n\u003ch3 data-mce-fragment=\"1\" style=\"font-weight: 500;\" data-mce-style=\"font-weight: 500;\"\u003eColor coded label for easy pH buffer value identification\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eEasy to identify different buffer values\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSolution does not contain any dyes that may stain the reference cell of a pH electrode \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e \u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eAccuracy: \u003c\/strong\u003e\u003c\/b\u003eStandard ±0.01 pH\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003epH Value @25°C:\u003c\/strong\u003e\u003c\/b\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e10.01\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eSize:\u003c\/strong\u003e\u003c\/b\u003e 20 mL\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePacks Included: \u003c\/strong\u003e\u003c\/b\u003e1\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\" style=\"font-weight: 500;\" data-mce-style=\"font-weight: 500;\"\u003e\u003c\/h4\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833462058,"sku":"608895X","price":1.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-ph-calibration-solution-10-01-hanna-instruments-1146290157.webp?v=1743593762"},{"product_id":"phosphate-ultra-low-range-ppm-reagent-25-pack-hanna-instruments","title":"Phosphate Ultra-Low Range (PPM) Reagent - 25 Tests - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI774-25 are the replacement reagents for the HI774 Phosphate Ultra Low Range Checker® HC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe HI774-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Phosphate Ultra Low Range Checker\u003c\/span\u003e\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e HC. These reagents follow the Ascorbic Acid Method in which the reaction between phosphorus and reagents causes a blue tint in the sample. By simply adding the packet of HI774-25 reagent to the sample, the reaction will take place and the HI774 will determine the concentration from the color that is produced. The results will be displayed in ppb of phosphorus. These reagents are designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833527594,"sku":"X351068","price":16.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-phosphate-ultra-low-range-ppm-reagent-25-pack-hanna-instruments-1177056777.webp?v=1752018353"},{"product_id":"checktemp-1-digital-thermometer-hanna-instruments","title":"Checktemp 1 Digital Thermometer - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI98509 Checktemp\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e1 is a high-accuracy thermometer with a 1 m (3.3') flexible, silicone cable connecting the meter and the stainless steel probe. The sharp-tip penetration probe easily lances semi-solid products such as fruits, vegetables, and cheeses. This probe can also handle liquid, air and measurements in frozen materials. The probe incorporates an NTC thermistor sensor to measure the temperature.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e°C\/°F readout\u003c\/li\u003e\n\u003cli\u003eIP 65 water resistant protection\u003c\/li\u003e\n\u003cli\u003eNot intended for human use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Checktemp® 1 Digital Thermometer - HI98509 is a high-accuracy thermometer with a 1 m (3.3’) flexible, silicone cable connecting the meter and the stainless steel probe. The sharp-tip penetration probe easily lances semi-solid products such as fruits, vegetables, and cheeses. This probe can also handle liquid, air and measurements in frozen materials. The probe incorporates an NTC thermistor sensor to measure the temperature.\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003cbr\u003eThermistors make it possible to obtain extremely high accuracy in a very short period of time. The Hanna CAL Check™ feature has been incorporated into the Checktemp®1 for reliable and accurate measurements. CAL Check™ automatically runs a self-check upon startup and reports status back to the user; \"-0-\" for ok and \"Err\" if something is wrong.\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003cbr\u003eChecktemp®1 makes routine controls fast and simple for both incoming and outgoing goods. Constructed of AISI 316 stainless steel material, this probe is in compliance with food regulations, making it an ideal instrument for measuring temperature according to HACCP requirements.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eFeatures at-a-glance:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e±0.2°C (±0.5°F) - Accuracy\u003c\/li\u003e\n\u003cli\u003eMost accurate temperature tester in the world\u003c\/li\u003e\n\u003cli\u003eCAL Check™ - Automatically verifies calibration at startup\u003c\/li\u003e\n\u003cli\u003eSilicone probe cable - 3.3’ silicone cable maintains flexibility and performance\u003c\/li\u003e\n\u003cli\u003e°C\/°F Status – User selectable\u003c\/li\u003e\n\u003cli\u003eLarge display with wide environmental temperature range and viewing angle.\u003c\/li\u003e\n\u003cli\u003eIP 65 water resistant protection\u003c\/li\u003e\n\u003cli\u003eHACCP Compatible - Use as a tool for control in HACCP analysis\u003c\/li\u003e\n\u003cli\u003eAISI 316 stainless steel penetration Probe\u003c\/li\u003e\n\u003cli\u003eAuto-Off (select from 8 min., 60 min., or turn the feature off)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833560362,"sku":"HI98509","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-checktemp-1-digital-thermometer-hanna-instruments-1146290230.jpg?v=1743595092"},{"product_id":"marine-magnesium-checker-colorimeter-hanna-instruments","title":"Marine Magnesium Checker - Colorimeter - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eOur Marine Magnesium Checker® HC (HI783) is designed to accurately and quickly determine the magnesium level in marine (saltwater) samples. The digital readout makes measurements effortless.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRange: 1,000 to 1,800 ppm Magnesium\u003c\/li\u003e\n\u003cli\u003eSimple test process and procedure\u003c\/li\u003e\n\u003cli\u003eSaltwater Compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_1651060785346\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"module\"\u003e\n\u003cp\u003eOur Magnesium Checker\u003csup\u003e®\u003cspan\u003e \u003c\/span\u003e\u003c\/sup\u003eHC (HI783) is the first marine magnesium test of its kind! This Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eprovides an uncomplicated, accurate, and budget-friendly way to measure magnesium in saltwater\/marine environments. Color-coded syringes and straightforward testing steps ensure quick and easy measurements every time! Magnesium is vital in saltwater environments as it allows calcium and carbonate to be bioavailable for corals and invertebrates. Designed as a more accurate alternative to chemical test kits, our\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMarine Magnesium Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC (HI783) provides quick, accurate results in a few easy steps.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures at-a-glance\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFewer steps than other chemical tests\u003c\/li\u003e\n\u003cli\u003eColor-coded syringes make the magnesium test simple and effortless\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSaltwater Aquariums, Marine, and Aquaculture Applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_1651060792711\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"module\"\u003e\u003cspan id=\"hs_cos_wrapper_widget_1651060792711_\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_linked_image\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"linked_image\"\u003e\u003cimg src=\"https:\/\/www.hannainst.com\/hubfs\/002-campaign\/HI783-HI784-Launch-2022\/QR783_02_22-1-B.jpg\" class=\"hs-image-widget\" alt=\"QR783_02_22-1-B\" title=\"QR783_02_22-1-B\" loading=\"lazy\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_1651060798919\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"module\"\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cspan class=\"hs-cta-wrapper\" id=\"hs-cta-wrapper-a52e6b60-1aba-452a-b535-673197ad5ae9\"\u003e\u003cspan class=\"hs-cta-node hs-cta-a52e6b60-1aba-452a-b535-673197ad5ae9\" id=\"hs-cta-a52e6b60-1aba-452a-b535-673197ad5ae9\" data-hs-drop=\"true\"\u003e\u003ca id=\"cta_button_2134380_25f17e1c-bc4a-42db-ba04-210b67e8db1b\" class=\"cta_button\" href=\"https:\/\/www.hannainst.com\/cs\/c\/?cta_guid=25f17e1c-bc4a-42db-ba04-210b67e8db1b\u0026amp;signature=AAH58kHSb4MCfrWm9AlIq6ZhXt57COh6ug\u0026amp;pageId=69834135683\u0026amp;placement_guid=a52e6b60-1aba-452a-b535-673197ad5ae9\u0026amp;click=17d95a83-c57b-4d7f-87ba-c969291b48c5\u0026amp;hsutk=4b8b61c0f97b9d9b12e0ef5d0a95c2c9\u0026amp;canon=https%3A%2F%2Fwww.hannainst.com%2Fmarine-magnesium-checker-hc.html\u0026amp;utm_referrer=https%3A%2F%2Fwww.google.com%2F\u0026amp;portal_id=2134380\u0026amp;redirect_url=APefjpGDosgyV0je1JA_U6Wl9sm_PiWy2y_K-ww7RdUYUqWTUmn5eteg0lJToHLrsp758zF2B-fRHgMU9JXCoNes7KdknMvtfYWyIK7kW7bNIP-lsccOx3qH-w2b7Cv-ZJKtvJVNFnKHvEy1ywUtgmcGyi6havzXTuyjFWNqXXR4cDgpp2inIHNXAhZkwXX6lCbp9l0YKupXCnHIPaQ7-kRVT7dR_jdBBpeXyHVYMAr1_p19H9Gwj8QXi9P-RYX5n3WttcM53jhwv9A6HjTPPp6qJSoPnmsuumzHKjEGvnkJrDR--c7b1ep2hbWBkICvjh-LLTnLdppZ\u0026amp;__hstc=42494650.4b8b61c0f97b9d9b12e0ef5d0a95c2c9.1691504985603.1691504985603.1691504985603.1\u0026amp;__hssc=42494650.20.1691504985615\u0026amp;__hsfp=1804641370\u0026amp;contentType=standard-page\" title=\"DOWNLOAD QUICK GUIDE\" cta_dest_link=\"https:\/\/www.hannainst.com\/hubfs\/006-finished-content\/Quick-Guides\/QR783_02_22.pdf\"\u003e\u003cspan\u003eDOWNLOAD QUICK GUIDE\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_1651060829649\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"module\"\u003e\n\u003csection class=\"banner--product-rich-text\"\u003e\n\u003cdiv class=\"grid-container\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y align-center callout\"\u003e\n\u003cdiv class=\"cell small-12 large-10\"\u003e\n\u003ch5\u003e\u003cstrong\u003eMagnesium Checker Tips \u0026amp; Tricks for Accurate Measurements\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eMeasure liquids accurately by syringe by drawing up the plunger until the bottom seal of the plunger is at the desired volume mark. Do NOT raise the liquid to the mark as this will give a false high volume. An air gap between the plunger and liquid is normal.\u003c\/li\u003e\n\u003cli\u003eAlways use clean, dry cuvettes and syringes\/tips. Rinse with deionized (RODI) water only; never rinse with tank water. Dry the cuvettes before use to prevent dilution.\u003c\/li\u003e\n\u003cli\u003eEnsure the sample does not contain any debris.\u003c\/li\u003e\n\u003cli\u003eWhenever the cuvette is placed into the checker, it must be dry outside and free of fingerprints, oil and dirt.\u003c\/li\u003e\n\u003cli\u003eWipe the cuvette thoroughly with\u003cspan\u003e \u003c\/span\u003eHI731318\u003cspan\u003e \u003c\/span\u003emicrofiber cleaning cloth or a lint-free cloth prior to insertion.\u003c\/li\u003e\n\u003cli\u003eShaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.\u003c\/li\u003e\n\u003cli\u003eDo not let the reacted sample stand too long after reagent has been added, as accuracy will be affected.\u003c\/li\u003e\n\u003cli\u003eDiscard the sample immediately after the reading has been taken or the glass might become permanently stained.\u003c\/li\u003e\n\u003cli\u003eKeep the tips with their appropriate syringes during measurement. Clean the syringes and tips before storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833625898,"sku":"420471L","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-marine-magnesium-checker-colorimeter-hanna-instruments-1146290202.jpg?v=1743594612"},{"product_id":"ph-calibration-solution-7-01-hanna-instruments","title":"pH Calibration Solution - 7.01 - Hanna Instruments","description":"\u003cp data-mce-fragment=\"1\"\u003epH 7.01 is the most widely used among all buffer solutions. For this reason we have prepared it in a wider variety of sizes to meet your application needs.\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTraceable to NIST standards\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAvailable in bottles or sealed sachets, complete with or without a certificate of analysis.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMultiple resolutions for better accuracy.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833658666,"sku":"521484V","price":1.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-ph-calibration-solution-7-01-hanna-instruments-1146290181.webp?v=1743594132"},{"product_id":"calcium-checker-colorimeter-hanna-instruments","title":"Calcium Checker - Colorimeter - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAlways get accurate results for your saltwater aquarium with our handheld colorimeter.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOur saltwater calcium colorimeter fills the gap between calcium test kits and advanced instrumentation. Standard test kits have limited accuracy as they depend on the human eye to determine colors. Our handheld colorimeter eliminates the trouble of matching to a color chart by providing a direct saltwater calcium result in ppm\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eCa2+.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOur portable handheld colorimeter goes where you go.\u003c\/li\u003e\n\u003cli\u003eAchieve your calcium results easily with simple, one-button design.\u003c\/li\u003e\n\u003cli\u003eQuickly get your results without any hassle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe HI758U Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure calcium. Required for the development of calcium carbonate skeletons of coral reefs, calcium is a crucial component of marine waters. Designed as a more accurate alternative to chemical test kits, the HI758U provides quick, accurate results in a few easy steps.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures at-a-glance\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003eIdeal for: Aquaculture, Water Quality, Environmental, Education\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe HI758U Marine Calcium Checker HC® uses a 100 to 1 dilution for analysis and thus requires deionized or distilled water absent of calcium to function correctly. Calcium can be found in many freshwater sources and this any amount present in the water used at the C1 phase can cause false high readings. In addition, many hobby grade reverse osmosis deionized water systems may not adequately remove calcium. This can vary based on the types of filters used, their effectiveness and frequency of replacement. We recommend using deionized water with low conductivity or pure vapor distilled water commonly found in most pharmacies.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNever use tap water to clean your cuvettes. This is especially important for the HI758U Marine Calcium Checker as calcium is commonly present in tap water and residual amounts present in the cuvette will elevate results produced by the Checker. Our HI98703-50 Cuvette Cleaning Solution ensures the glass cuvette used for colorimetric measurements remains clean and free from imperfections.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eCalcium Checker Troubleshooting Tips\u003c\/strong\u003e\u003c\/h5\u003e\n\u003col\u003e\n\u003cli\u003eNever rinse your cuvettes with tap water or saltwater\u003c\/li\u003e\n\u003cli\u003eUse pure vapor distilled water from your local pharmacy at C1 phase. RODI water from home filtration units may not be suitable for this test as calcium can easily permeate through your filter membranes.\u003c\/li\u003e\n\u003cli\u003eClean your cuvettes with distilled or deionized water absent of Calcium that is going to be used for C1 phase dilution.\u003c\/li\u003e\n\u003cli\u003eMeasure out 9 ml of distilled or deionized water for C1 phase\u003c\/li\u003e\n\u003cli\u003eMake sure no excess aquarium sample saltwater is on the tip of the pipette. Only administer the saltwater that is sucked into the pipette tip.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833724202,"sku":"818457R","price":63.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-calcium-checker-colorimeter-hanna-instruments-1146290179.jpg?v=1743594126"},{"product_id":"phosphate-ultra-low-range-checker-colorimeter-hanna-instruments","title":"Phosphate Ultra-Low Range Checker  - Colorimeter - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI774 Ultra Low Range Phosphate Checker® HC (Handheld Colorimeter) is a cost-effective way to measure phosphate in marine systems, including reef tanks. Testing for phosphates is standard practice for saltwater aquariums and provides valuable insight into your reef tank's water chemistry to help ensure long-term coral health. Phosphates are one of the many forms of phosphorus compounds found in marine waters. Excessive phosphate levels can prevent calcification, skeletal formation, and growth of many coral species, particularly those referred to as SPS or small-polyp stony. In addition, high phosphate levels can cause nuisance algae growth in your reef tank. This can become problematic because algae often outcompetes sessile organisms for light, nutrients, and space, jeopardizing long term coral health in your reef. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTake our portable handheld colorimeter anywhere.\u003c\/li\u003e\n\u003cli\u003eSimple, one-button design makes getting your results easy.\u003c\/li\u003e\n\u003cli\u003eImprove your technology and upgrade from your standard test kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe HI774 Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphate from 0.00 to 0.90 ppm. Phosphorus is an important parameter to measure in aquaculture and aquariums; levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life. Designed as a more accurate alternative to chemical test kits, the HI774 provides quick, accurate results in a few easy steps.\u003c\/p\u003e\n\u003ch4\u003e \u003c\/h4\u003e\n\u003ch4\u003eFeatures at-a-glance:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003eIdeal for: Aquariums, Environmental, Aquaculture, Water Quality\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117833888042,"sku":"K736476","price":63.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-phosphate-ultra-low-range-checker-colorimeter-hanna-instruments-1146290124.jpg?v=1743598082"},{"product_id":"phosphorus-ultra-low-range-ppb-25-pack-reagent-hanna-instruments","title":"Phosphorus Ultra-Low Range (PPB) Reagent - 25 Tests - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe HI736-25 are the replacement reagents for the HI736 Phosphorus Ultra Low Range Checker® HC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe HI736-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Phosphorus Ultra Low Range Checker\u003c\/span\u003e\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e HC. These reagents follow the Ascorbic Acid Method in which the reaction between phosphorus and reagents causes a blue tint in the sample. By simply adding the packet of HI736-25 reagent to the sample, the reaction will take place and the HI736 will determine the concentration from the color that is produced. The results will be displayed in ppb of phosphorus. These reagents are designed to be used with samples that have an expected range of 0 to 200 ppb phosphorus.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117834510634,"sku":"192506L","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-phosphorus-ultra-low-range-ppb-25-pack-reagent-hanna-instruments-1146290196.jpg?v=1743594494"},{"product_id":"marine-monitor-ph-salinity-temperature-hanna-instruments","title":"Marine Monitor (pH\/Salinity\/Temperature) - Hanna Instruments","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eStraightforward, User-Friendly Monitoring of Key Saltwater Aquarium Parameters\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eContinuous monitoring of pH, salinity, and temperature\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBacklit, large LCD display\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAutomatic single button calibration w\/ included solutions\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAutomatic temperature compensation\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eVisual and audible high and low alarms for each parameter\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSalinity measurements in ppt, PSU, or S.G.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTemperature measurements in °C or °F\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSuitable for continual immersion in saltwater environments\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWaterproof probes and IP65 monitor housing\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDouble junction pH probe\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFixed two-electrode salinity probe with built-in temperature sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Hanna Instruments Marine Monitor is an easy-to-use and reliable device for tracking pH, salinity, and temperature in saltwater systems. Its waterproof probes are designed for continual monitoring and can be left submersed via the included suction cup mounts. The monitor housing is splash proof and can be mounted to the exterior of your tank via the included adhesive fastening strips, or with screws \u003cem data-mce-fragment=\"1\"\u003e(not included)\u003c\/em\u003e. The system is easily calibrated with a single button at one or two points for pH and at one point for conductivity \u003cem data-mce-fragment=\"1\"\u003e(all calibration solutions included)\u003c\/em\u003e). Salinity reading are expressed in parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (S.G.) at the user’s discretion; whilst temperature readings can be displayed in either Celsius or Fahrenheit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe attached two-electrode conductivity probe features a built-in temperature sensor for rapid, high-accuracy temperature readings. The included Hanna HI1286 pH double junction, gel-filled pH electrode features a PEI resin body that is easy to clean and resistant to many aggressive chemicals. Additionally, the double junction design is less susceptible to clogging for fast and stable readings. The Marine Monitor uses both probes to continuously track tank parameters and will alert you with a visual and optional audio alarm if any given measurement goes out of range. All results are displayed on the monitor’s large, easy-to-read backlit LCD screen for added convenience.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003epH Range: \u003c\/strong\u003e0.0 to 14.0 pH\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003epH Resolution: \u003c\/strong\u003e0.1 pH\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003epH Accuracy: \u003c\/strong\u003e±0.2 pH (@25°C\/77°F)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eTemperature Range: \u003c\/strong\u003e0.0 to 50.0 °C (32.0 to 122.0 °F)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eTemperature Resolution: \u003c\/strong\u003e0.1 °C \/ 0.1 °F\u003cstrong data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eTemperature Accuracy: \u003c\/strong\u003e±0.5 °C \/ ±1.0 °F (@25°C\/77°F)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCalibration:\u003c\/strong\u003e pH Calibration: Manual or automatic two-point calibration in 7.01 and 10.01 pH; ppt Calibration: Automatic, single point in 35.00 ppt; Temperature Calibration: Automatic, 5 to 50 °C (41 to 122 °F)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eEnvironment: \u003c\/strong\u003e0 to 50°C (32 to 122°F); max 95% RH, non-condensing\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003ePower Supply: \u003c\/strong\u003e12V DC adapter (included); 115-230V AC\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCasing: \u003c\/strong\u003eIP65 ingress protection\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDimensions: \u003c\/strong\u003e125 x 185 x 38 mm (4.92″ x 7.28″ x 1.49″)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight: \u003c\/strong\u003e300 g (10.6 oz.)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eAlarms:\u003c\/strong\u003e High or Low with Enable or Disable option\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eProbe Cable Length:\u003c\/strong\u003e 2m (6.6 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhat’s Included?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(1x) HI981520 Marine Monitor\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(1x) HI1286 pH electrode\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(1x) Conductivity \u0026amp; temperature probe (attached)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(2x) 20mL sachet pH 7.01 buffer solution\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(2x) 20mL sachet pH 10.01 buffer solution\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(2x) 20mL sachet 35.00 ppt saltinity calibration solution\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(2x) 20mL sachet electrode cleaning solution\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(2x) Suction cup with clip\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(2x) Self adhesive fastener\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(1x) 12V DC power adapter\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(1x) instrument quality certificate\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e(1x) Quick reference guide w\/ digital product manual QR code\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49117834707242,"sku":"1886483","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-marine-monitor-ph-salinity-temperature-hanna-instruments-1146289382.webp?v=1743575046"},{"product_id":"alkalinity-checker-colorimeter-hanna-instruments","title":"Alkalinity Checker - Colorimeter - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eImprove the accuracy of your results for your saltwater aquarium with our simple handheld colorimeter. Our alkalinity colorimeter closes the distance between alkalinity test kits and advanced instrumentation. Standard test kits are limited with accuracy since they depend upon the human eye to discern colors. Our handheld colorimeter eliminates the struggle of matching to a color chart by providing a direct saltwater alkalinity result in ppm CaCO\u003csub\u003e3\u003c\/sub\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOur handheld colorimeter is portable and fits right in your pocket.\u003c\/li\u003e\n\u003cli\u003eGet your alkalinity results easily with simple one-button operation.\u003c\/li\u003e\n\u003cli\u003eDon’t worry about matching the right color, our colorimeter does it for you.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe HI755 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure alkalinity. Crucial in marine environments, alkalinity provides both the carbonate ion required for calcium carbonate skeletal regeneration of coral reefs, as well as a pH buffer against large changes in acidity. Designed as a more accurate alternative to chemical test kits, the HI755 provides quick, accurate results in a few easy steps.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures at-a-glance\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003eIdeal for: Water Quality, Environmental, Education, Industrial\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49118320099626,"sku":"M975382","price":63.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-alkalinity-checker-colorimeter-hanna-instruments-1146279085.jpg?v=1743356042"},{"product_id":"alkalinity-reagent-25-tests-hanna-instruments","title":"Alkalinity Reagent - 25 Tests - Hanna Instruments","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv data-hs-cos-type=\"module\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" id=\"hs_cos_wrapper_product_details\"\u003e\n\u003csection data-product-details=\"\" class=\"grid-container product-details\" id=\"product-details\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cdiv data-product-description=\"\"\u003e\n\u003cdiv data-hs-cos-field=\"product_description\" data-hs-cos-type=\"inline_rich_text\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_inline_rich_text\" id=\"hs_cos_wrapper_product_details_\"\u003e\n\u003cp\u003eThe HI772-26 are the replacement reagents Marine Alkalinity (dKH) Checker® HC - HI772. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eThe HI772-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Alkalinity Checker® HC. These reagents follow the Colorimetric Method in which the reaction causes a distinctive range of colors from yellow to green to blue to develop. By simply adding the solution of HI772-26 to the sample, the reaction will take place and the Marine Alkalinity Checkers will determine the concentration from the color that is produced. The results will be displayed in dKH for the HI772 Checker . These reagents are designed to be used with samples that have an expected range of 0.0 to 20.0 dKH\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cbr\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":49118320329002,"sku":"Y592681","price":16.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-alkalinity-reagent-25-tests-hanna-instruments-1146279049.jpg?v=1743355321"},{"product_id":"algea-nutrient-hanna-instruments","title":"Algae \u0026 Nutrient Management Kit - Hanna Instruments","description":"\u003cp class=\"p1\"\u003eStay on top of water quality with this go-to testing combo trusted in our own systems. The Hanna Instruments Marine Nutrient Checker Kit combines two of the most reliable handheld colorimeters available from Hanna Instruments—designed specifically for reef aquariums and built to give consistent, lab-grade results.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhether you’re tracking down nuisance algae or fine-tuning coral growth, this bundle includes everything you need to monitor phosphate and nitrate levels with confidence.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"p3\"\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eWhat’s Included\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"p3\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eHI774 Ultra Low Range Phosphate Checker\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eMeasures phosphate down to 0.01 ppm—ideal for reef tanks where small nutrient shifts can mean big changes. Quick, easy, and accurate without relying on hard-to-read color charts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eHI782 High Range Nitrate Checker\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003ePerfect for keeping tabs on nutrient spikes. Easy-to-use handheld tester for nitrate levels up to 75 ppm with digital readout—no guessing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eReagents\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eIncludes an additional 25 phosphate tests and 25 nitrate tests to get you started.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eAccessories\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eCuvettes, caps, batteries, and instructions—everything you need to get testing right away.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":50380707692842,"sku":"H-MANMK","price":144.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-algae-nutrient-management-kit-hanna-instruments-1177050065.jpg?v=1752011168"},{"product_id":"algae-nutrient-management-kit-hanna-instruments-copy","title":"Marine Coral Care Kit - Hanna Instruments","description":"\u003cp class=\"p1\"\u003eTake the guesswork out of coral care with this complete marine test kit from Hanna Instruments—our go-to tools for precision reef maintenance. The Marine Coral Care Kit includes digital handheld checkers for \u003cspan class=\"s1\"\u003e\u003cb\u003eAlkalinity (HI772)\u003c\/b\u003e\u003c\/span\u003e, \u003cspan class=\"s1\"\u003e\u003cb\u003eCalcium (HI758)\u003c\/b\u003e\u003c\/span\u003e, and \u003cspan class=\"s1\"\u003e\u003cb\u003eMagnesium (HI783)\u003c\/b\u003e\u003c\/span\u003e—three of the most critical parameters for coral growth and reef tank stability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eWhat’s Included:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p4\"\u003e\u003cb\u003eHI772 Alkalinity Checker (dKH)\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eQuickly and accurately measures alkalinity in degrees of carbonate hardness (dKH). Essential for maintaining pH stability and providing the carbonate backbone for coral skeletons. A must-have for dosing and reef balancing.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p4\"\u003e\u003cb\u003eHI758 Calcium Checker\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eTired of color charts? This digital calcium tester gives precise ppm readings between 200–600 ppm. Perfect for keeping up with calcium demands in LPS and SPS-dominant systems.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p4\"\u003e\u003cb\u003eHI783 Magnesium Checker\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAccurately measures magnesium levels from 1000 to 1800 ppm using lab-grade colorimetry. Magnesium is key to stabilizing both calcium and alkalinity—this tool helps you avoid the silent crashes caused by imbalances.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eWhy We Use It:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eDigital Accuracy:\u003c\/b\u003e\u003c\/span\u003e Never guess shades again—see the numbers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eEasy Workflow:\u003c\/b\u003e\u003c\/span\u003e Simple 4-step process for all three checkers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eDesigned for Saltwater:\u003c\/b\u003e\u003c\/span\u003e Tuned specifically for marine chemistry ranges.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eLab-Tested, TSA Approved:\u003c\/b\u003e\u003c\/span\u003e We use these in our coral systems for a reason—they work.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":50380724404522,"sku":"H-MCCK","price":194.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/hanna-instruments-marine-coral-care-kit-hanna-instruments-1177050062.jpg?v=1752011158"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/collections\/hanna-checkers_2068d36e-5ad1-4c64-88c5-0c0cade4584b.webp?v=1745442597","url":"https:\/\/topshelfaquatics.com\/collections\/hanna-instruments.oembed?page=2","provider":"Top Shelf Aquatics ","version":"1.0","type":"link"}