BJ Enterprises Keyed Remote Air Solenoid Valve System is designed to control air supply to equipment with the turn of a key, up to 2000 feet away. This new system helps assure air compressors or oil pumps are idled when unattended, stopping the unauthorized use of pneumatic equipment and preventing the pilferage of bulk oil and product inventory. A red LED indicator indicates when the valve is on/open, and there is a low voltage indicator. This easy-to-install unit runs on 12 Volt DC and features 1/2 NPT ports, with a max operating pressure of 200 psi.