LLC710D3L24-003, Liquid Level Sensors +125degC, 8-30VDC, 1/4" NPT , N-type sink in air, low in air output, polysulfone

Optomax Industrial Range of Liquid Level Switches
SST Sensing Optomax Industrial Range of Liquid Level Switches are designed to offer industrial supply voltages and outputs that can directly drive higher power loads. The microcontroller based sensor is solid state, incorporating an infra-red LED and phototransistor which are optically coupled by the tip when the sensor is in air. When the sensing tip is immersed in liquid, the infra-red light escapes making the output change state. The sensor can detect the presence or absence of almost any liquid type; oil or water based. It is insensitive to ambient light and is not affected by foam when in air or by small bubbles when in liquid.