1Float switch has a long life and the switching frequency can reach 10 million times 2The automatic control switch of the bilge pump is ultrasonic welding to form a closed space, which is reliable and safe, and does not leak 3The switch can be removed from the base for easy cleaning, saving time and effort. Suitable for scenarios such as water conservancy engineering, hydraulic engineering, electronic engineering, etc 4The switch structure is simple and compact, easy to install and use, can avoid the useless power consumption of the pump, and extend the economy of the pump 5A device that makes use of the principles of gravity and buoyancy to switch on and off circuits or waterways. Floating switch that automatically controls the start and stop of the submersible pump