The small float switch is a kind of liquid level control part with simple structure and convenient use. It has no complex circuit and will not be disturbed. It is often used for liquid level detection, remote transmission of on-site indication signals,liquid level alarm, etc. of various medium and small atmospheric and pressure liquid tanks. As long as the material is selected correctly, liquid, pressure and temperature of any nature can be used. A variety of installation methods are suitable for various types of containers, and can also be customized according to customer needs.