A float switch is a type of level sensor, a device used to detect the level of liquid within a tank. The switch may be used to monitor when water levels reach a high or low level and is used with the Captis.
The purpose of a float switch is to open or close a circuit as the level of a liquid rises or falls.
The design provides a natural adjustable hysteresis that stops chattering of relay.
It has a weight that keeps the cable straight to eliminate fouling and provides hysteresis.