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Neptune Store organization Logo Optical Level Sensor (OS-1)This sensor plugs into your FMM and, using reflected infrared light, will 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 hi…
9.2
271 reviews

Optical Level Sensor

Optical Level Sensor (OS-1)
This sensor plugs into your FMM and, using reflected infrared light, will 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 into custom brackets or through a hole in a vessel. Included are a fastening nut and silicone washer. These sensors are sold individually.

Product number: OS-1
  • Includes fastening nut and silicone washer
  • Connection: jack-plug
  • Length cable: 3m

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1 review

13 April 2020 15:01

poor quality

after a couple of months, water go inside sensor and stop to working, some rust inside appears!

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