A. Quantity: 1 piece B. Contact capacity: 50 watts C. Number of switching operations: 10 to the power of 7 D. Switching voltage: 0 - 220V AC / 0 - 200V DC E. Operating temperature: -10°C to 100°C F. Switching current: 0.5 amperes (resistive load) G. Operating pressure: 10 ohms H. Medium specific gravity: > 0.75 I. Protection class: IP40 J. Switch material: SUS304 stainless steel K. The double float switch can be used to control the liquid level (drainage or water intake) of water tanks, swimming pools, tanks, aquariums, etc., and can also achieve high and low liquid level control. The operation is relatively simple. L. The internal contact is a reed switch, which has relatively high sensitivity, high resistance and good performance. M. The float switch is not suitable to directly control solenoid valves, high - power relays, AC contactors, etc. A small relay (such as HH54P) is needed for conversion. N. The operating range of the two floats of the double float switch is 10 millimeters. If a larger control range is needed, two float switches can be combined to increase the stroke, helping to ensure that the water pump does not start frequently, saving time and improving efficiency. O. During the normal water intake process, the lower float switch starts and the upper float switch stops working. Drainage is started by the upper float switch and stopped by the lower float switch.