1、SUITABLE compatible with PUMP CONTROL: This liquid level float switch is suitable compatible with controlling the operation of pumps, as well as compatible with installation on submersible pumps compatible with engine control and protection. 2、HIGH SEALING PERFORMANCE: The 4m float switch adopts polypropylene sealing to ensure high sealing performance. The design of the float switch utilizes the principles of gravity and buoyancy, making it simple and reasonable in structure. 3、AUTOMATIC WATER LEVEL ADJUSTMENT: The water level float switch automatically adjusts and is user friendly, easy to install, safe and reliable, promoting a greener and more environmentally friendly solution. 4、VERSATILE APPLICATIONS: compatible with motor power below 750W, the float switch can be directly used. compatible with motors above 750W, it is recommended to use an AC contactor. The float switch water level controller is suitable compatible with a variety of containers such as swimming pools, barrels, tanks, and more, widely used in households, factories, and mining enterprises compatible with storing water, oil, acids, alkalis, and other substances. 5、EASY INSTALLATION AND RELIABLE PERFORMANCE: This float switch compatible with water tanks offers easy installation and reliable performance, ensuring efficient and effective control of water levels in various applications.