Float switch is a liquid level control device with simple structure and convenient use. It does not need to provide power and has no complicated circuits. It has the advantages of smaller volume and longer working life than general mechanical switches. As long as the material is selected correctly, any type of liquid or pressure and temperature can be used. It is obtained in shipbuilding industry, generator equipment, petrochemical industry, food industry, water treatment equipment, dyeing and finishing industry, hydraulic machinery, etc. A wide range of applications.