• 1/4-18 NPT Male Thread: Easy connection air tank /train/air horn, air ride pressure switch
• Air Pressure Switch turn on if pressure below 170psi, turn off reach 200psi
• DC pressure switch:24v pressure switch,12v pressure switch, AC 110V 120V 240V air pressure switch.
• Versatile Use air pressure switch: Such as for air horn /train, air tank pressure switch