SST Sensing LLE Series Liquid Level Switches are used for the detection of liquid level or liquid leaks, and designed to drive digital inputs, LEDs, buzzers and indicator lamps. The LLE Series liquid level switches use the same operating principle as the SST optical liquid level design, the only difference with the SST liquid level switches are the housings. The SST design has a conical tip rather than a domed one as this improves the overall reliability of the sensors. All thread sizes and other critical dimensions remain identical. Applications include home appliances, food and beverage, vending machines, medical, industrial compressors, HVAC, transportation, aerospace, and military.