International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Air Pressure Control Switch Zone Control Air 120 PSI ON/ 150 PSI OFF: The pressure switch will automatically turn it on when the pressure is below 120 PSI and turn it off when pressure reaches 150 PSI. Air Compressor Tank Pressure Switch at Alan Fortune blog 1/4-18 NPT Air Switch Air Pressure Switch 120-150 PSI 1/4-18 NPT Air Qatar Air Compressor Pressure Switch AC pressure switch/dc pressure switch, it work at ac 120V, ac 110v, ac 240v or dc 24v, dc 12v. 120 PSI ON/ 150 PSI OFF: The pressure switch will automatically turn it on when the pressure is below 120 PSI and turn it off when pressure reaches 150 PSI Thread 1/4-18 NPT, wire length:7., 87inch (20cm), please check picture for details. Suit for AC or DC Power :it work at ac 120V, ac 110v, ac 240v or dc 24v dc 12v Service life :100000cycles,long working life air pressure switch, please contact us if any issue.