SOS Siren Operated Sensor Emergency Access System
SOS Makes ALL Gates 911 Accessible. 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 frequencies. The sensitivity is adjustable to ensure drive-by sirens do not open your gate inadvertently.