SOS Siren Operated Sensor Emergency Access System Liftmaster Barrier Arms and delete transmitters through programming

and delete transmitters through programming mode

Quick Close/Anti-Tailgate

Contact Rating: 2A @ 30V DC / 0

when Remote Operation is Needed

SOS Siren Operated Sensor Emergency Access System Liftmaster Barrier Arms and delete transmitters through programmingCLICK HERE FOR BROCHURE CLICK HERE FOR MANUAL SOS Siren Operated Sensor Emergency Access System Always check with your local Fire Department for compatibility before making a purchase The Siren Operated Sensor (SOS) is used to open residential, commercial, airport, government and military gates during an emergency. SOS is compatible with all gate operators. Because SOS specializes in sound sensors, triggers can be customized to respond to individual