A float switch is a device used to detect the level of liquid within a tank. The switch may be used in a pump, an indicator, an alarm, or other devices.Rated voltage: 250v & rated current: 8acontacts: no+nc & weight: 635 gmcable: 3 meter (i.e. Customize wire lenght is available)endurance: 500, 000 times & high quality of wire and plastic body electricaluse: water level, liquid level controller etc