Maximum voltage: 240V. Maximum current: 15 amps. Maximum pressure: 175 psi, 12 bar. Material: plastic and zinc and copper alloy. Internal thread diameter: 1/4 PT. The main function of this valve is to regulate the shutdown and start pressure of the air compressor. The valve knob allows you to adjust the atmospheric pressure if necessary. Easy to assemble and disassemble. The barometer can be used to set and read the data. The air compressor pressure switch is an extremely important part, it allows you to install or connect the compressor to the air compressor or trachea air pressure, apply power and stop compressor motor. Package includes: 1 x Pressure Regulator (with pressure gauge) Maximum voltage: 240V Maximum current: 15 amps Maximum pressure: 175 psi, 12 bar Internal thread diameter: 1/4 PT Durable and practical. Easy to install and disassemble. The barometer can be used to set and read the temperature data. The valve knob can be used to adjust the air pressure as needed.