Material: plastic and zinc alloy and copper.Max voltage: 240V.Max current: 15amp.Max pressure: 180 psi, 12 bar. Voltage (V): 240.Diameter of female thread : 1/4 PT.Features: Durable and utility. Diameter: about 150mm -180mm.Size: 105 x 80 x 67mm. Easy to install and disassemble.With the barometer, can be set and read data. With the valve knob, you can adjust the atmospheric pressure as needed. Can help to save electric power. Strong plastic shell and excellent performance.The air compressor pressure switch is an extremely imperative part, it is used to install or connect the air compressor or trachea, to adjust the air pressure, to start the energy and to cut off the compressor motor. The main role of this valve is to regulate the stop and start pressure of the air compressor.