Moon Wired Water Liquid Level Sensor, Stainless Steel Double Ball Float Switch, for Swimming Pool with Tank(150mm)

[HIGH POWER RELAY] The float switch cannot directly control solenoid valves or high power relays, AC contactors, etc. A small relay (like HH54P) is needed for the transition. CONTROLS LIQUID LEVEL] The double float switch can be used to control the liquid level of water tank, pool, sink , aquarium, etc. (drain or water), or to activate the upper and lower liquid level alarm switch. [HIGH SENSITIVITY] The contacts inside are made of a very high sensitivity reed switch. [DESCRIPTION] The action range of the two floats of the double float switch is 10 mm. If the demand control range is wide, two float switch combinations can be used, so that there is a large stroke to ensure that the pump does not start frequently. FLOAT SWITCH BELOW] Normal water intake process activated by the float switch below, and the float switch above stops working. The drain is activated by the float switch above and the lower float switch stops working.