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 on any type of reservoir that has up to 1/4" thick walls.
- Compatible with Neptune FMM Module
- Magnet mounts to walls up to 1/4" thick
- Can be mounted vertical or horizontal
1x OS-1 Optical Sensor with nut and washer
1x OS-M Optical Sensor Magnetic Mount
Note: FMM Module required for use.
WORKS WAY BETTER THEN ANY FLOAT SWITCH! By FLSharkvictim on 8/27/2017FLSharkvictim would recommend this product to a friendI use 3 of these OS-1-M SENSORS in my sump and mixing station and they work way better than your average float switch that's $8.00 or so.
Great optical sensor. By Ken on 8/11/2017Ken would recommend this product to a friendWorks great I use them for high and low water in ATO, very happy with them.
Disapointed By Jason on 6/23/2017Jason wouldn't recommend this product to a friendThe wet side of the probe holder came apart and I see that it was not glued together very well or that it would even be water proof to protect the magnet from rusting
Probe holder is flimsy By Eric on 6/1/2017Eric wouldn't recommend this product to a friendThe probe holder clip broke when I tried screwing into the magnet.
Ask a question
Can the solenoid be rigged to also shut off a water line as an emergency measure if the float valve fails?
Can these sensors be installed easily in 2 part resovoirs that arent from neptune?
How many can you comnect to an FMM?
Does it work with apex classic?
Hope this helps!
Unfortunately at this time the mount is not sold separately.
The Optical Level Sensors require the FMM to operate. It is not compatible with the I/O Breakout Box.