OS-1 Optical Level Sensor V2 - Neptune Systems Lithophyllon LEDs (per cluster): 6x Royal

LEDs (per cluster): 6x Royal Blue

and other beneficial microorganisms

<p>Green Star Polyps are highly adaptable and tolerant of a wide range of water conditions

A Rotating Outage

OS-1 Optical Level Sensor V2 - Neptune Systems Lithophyllon LEDs (per cluster): 6x RoyalOptical sensors are the go to sensor if you want a reliable sensor over a long period. The Neptune Optical Sensor plugs directly into the FMM allowing you to monitor the level of your sump, mixing station, or any other reservoir with liquid in it. 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