
SOS 12 Siren-Operated Emergency Access Sensor
Siren-Activated Emergency Gate Access Sensor for First Responders The SOS 12 Siren-Operated Sensor is a trusted emergency access solution that opens gates automatically in response to a first responder’s siren. Widely used and often mandated nationwide, this fail-safe sensor listens for the “YELP” siren tone and triggers gate access within seconds - without requiring any radio signals, remotes, or prior programming. With adjustable sensitivity, programmable latch times, and dual reset buttons, the SOS 12 delivers reliable and code-compliant access control for gated communities, commercial properties, fire departments, airports, and industrial facilities. Key Features Siren-activated gate access triggered by standard emergency “YELP” siren within 3 seconds Adjustable sensitivity range: 80 to 125 dB via onboard potentiometer Programmable latch times: 5 minutes, 15 minutes, 1 hour, or latched until reset Dual reset buttons: External and internal for convenient reactivation Power-eff