this is a kind of cable type high quality water /fulid level contrl float switch, it can regulate fluid level in the Water tower, sewage tank.or well etc.The float switch is resistant to water(sewage water),it is relative capable of being used for pumping and draining.The float switch is not explosion proof. Features and spec Rated voltage:220V Rated current:10A Rated voltage:380V Rated current:4A Wire Length: 2M/3M Protection class:IP68 Diameter of the wire:0.4mm Power range:<500W Mechanical endurance:100,000times Electrical endurance:500,00times working temperature:0water temperature80 Environment: pool, oil, weak acid and weak base in water or oil tank,etc. package content Weight: 0.73kg/2m/3m Include:1x Square Float Switch With Adapter Wires