- OS-1-M Optical Level Sensor With Mount - Neptune Systems
Optical sensors are the go-to sensor if you want a reliability over a long period of time. The Neptune Optical Sensor plugs directly into the FMM allowing you to monitor the level of your sump, mixing station, or any other reservoir that has up to 1/4" thick walls.
Includes Magnetic Mount
Neptune FMM Module required for use.
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.
ATO RES. LOW ALARM By NOMAD on 4/18/2018NOMAD would recommend this product to a friendLets me know if my top off tank is low and will completely shut off ATK. Just keep sensor clean, air bubbles will set it off.
Works great thus far! By Doc E. on 2/14/2018Doc E. would recommend this product to a friendI use two of the optical sensors with the FMM and two floor sensors. I have an optical sensor in my weir (using Durso overflow) and an optical sensor in my ATO reservoir to notify me when the ro/di is low-- works like a charm!
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.
No related items recommended for this product.
Can this be used always submerged, as a low level alarm from the bottom of a reservoir? (Wet=no alarm dry=alarm)
What is the cable length on this?
Can you buy the FMM mode and water level sensors if you aren't in need to install in line flow motoring?
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!
Is the description correct, they can only be used on material up to 1/4" thick? That seems crazy thin. My sump is made of 3/8" material and using it directly on a glass tank would almost always be out of the question.
I have several of these sensors without the mount... Can I buy just the mount?
Unfortunately at this time the mount is not sold separately.
Can you add this to a breakout box?
The Optical Level Sensors require the FMM to operate. It is not compatible with the I/O Breakout Box.