Aquarium Supplies ships free over $49 - Learn More

Split-pay and Financing - 0% Interest* - Learn More

Earn Rewards Points for every $1 spent - Learn More

MOS Magnetic Optical Sensor - Neptune Systems

Neptune Systems  |  SKU: W617718
$4199

Description

Modern & compact magnetic water level monitoring

  • Improved look, feel, and design
  • Precise water level control
  • Built-in magnetic mount
  • Silicone-encased external magnet
  • Completely waterproof
  • Compact form factor fits into tight spaces
  • Strong magnetic mount suitable for glass or acrylic up to 1/2" thick

The Neptune MOS replaces the previous OS-1-M and features an updated design that fits into tighter spaces and helps to prevent water incursion into the sensor. The MOS plugs into an Apex FMM port and uses reflected infrared light to signal your Apex when it changes state from being wet to dry or dry to wet. This sensor can be used for constructing your own ATO (auto-top-off), as a high-level warning sensor in your sump, water storage level sensor, and much more. The sensors can be mounted on any type of reservoir that has up to 1/4" thick walls.

FREE Ground over $49 & Overnight over $399*

We offer competitive rates on aquarium supplies.

Reefer Rewards Points earned

Reedem points for discounts on Livestock and Supplies.

Split-Pay & Financing Options

We offer split-pay & financing with Affirm, Shop Pay, & PayPal