Float Switch Water Level Sensor, Stainless Steel Double Ball Fish Tank Liquid Float Switch Water Level Controller for Water Tank, Pool, Sink, Fish Tank, etc(4 Size)(100mm)

【WATER LEVEL SENSOR】float level switch is a liquid level control device with simple structure, no external power supply, no complicated circuit and easy to use. It has the advantages of smaller size and longer service life than mechanical switches. 【RANGE OF USE】The action range of the two floats of the double float switch of the water level sensor float switch is 10mm. If the demand control range is large, a combination of two float switches can be used, so that there is a large stroke to ensure that the pump will not start frequently. 【SENSITIVE WORK】The normal water intake process of the water level sensor switch is started by the lower float switch, and the upper float switch stops working. Drainage is activated by the upper float switch and the lower float switch is deactivated. The contacts inside are made of a reed switch with very high sensitivity, making the entire operation process more stable and sensitive. 【WIDE RANGE OF APPLICATIONS】 float switch for water tank can be used to control the liquid level of water tanks, pools, troughs, fish tanks, etc. (drainage or water), or as an alarm switch for liquid level up and down. Note: The float switch cannot directly control the solenoid valve or high-power relay, AC contactor, etc., and needs a small relay (such as HH54P) for conversion. 【SATISFACTORY AFTER-SALES SERVICE】we have a comprehensive after-sales service, providing you with a 60-day refund and a 12-month warranty. If you encounter any problems, please feel free to contact us, if you use If you are still satisfied afterwards, you can also consider us if you have other product needs in the future. We will make your purchase more at ease.