The float level switch is suitable for water treatment control equipment, electrical industry, ship hydraulic equipment, hydropower, chemical, petrochemical industry equipment and thermal coal boilers (used for measuring liquids with a density of ≥0.75g/cm³). It has explosion-proof properties, is easy to install, corrosion-resistant, and can meet most measurement needs. It is suitable for measuring liquid levels in various tanks and containers, and can be equipped with on-site displays if required.