Maximum voltage: 240 V. 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 shut-off and start-up pressure of the air compressor. The valve knob allows you to adjust the atmospheric pressure if necessary. Easy to install and remove. 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. It measures air pressure, applies power, and stops the compressor motor. Package includes: 1 x Pressure Regulator (with gauge) Maximum voltage: 240 V Maximum current: 15 amps Maximum pressure: 175 psi, 12 bar Internal thread diameter: 1/4 PT Durable and practical. Easy to install and disassemble. With the barometer, you can set the temperature and read the data. With the valve knob, the air pressure can be adjusted as