Description: Used to sense the level of liquid within a tank, the switch may activate a pump, an indicator, an alarm, or other devices. Simple structure, easy to install liquid level controller. Light weight and simple working principle, high reliability. Can be installed either at the top or base of your tank to detect the water's rise or fall. Specification: Material: Stainless Steel Length: 300mm, 400mm, 500mm (Optional) Type: Dual Ball Working Voltage: 0-220V Working Current: 0.5-1A Working Temperature: 0-120 ℃ Working Pressure: 1 Mpa, highest 5 Mpa Package Includes: 1 Piece Float Switch(3 Pack) Note: Float switch can not directly control solenoid valves or power relays, exchanges and contacts and the like. To add a small transition. Dual level float switch can be used in the control of water tanks, ponds, tanks, fish tank (drainage or water), or do the upper and lower level alarm switch.