Ninth-City 90-120 PSI Heavy Duty Air Compressor Pressure Control Switch Valve 100% Brand new with good quality. Auto power on at 90 PSi.Auto power off at 120 PSi. Power supply : DC12/24/36V 3A, AC 125V 8A~240V 5A Thread : 1/8 -27NPT.Thread DIA : 8mm. Duration : more than 30,000 times.