LiftMaster SOS 12 Siren-Operated Sensor Emergency Access Vehicle Detector

Ensure first responders have immediate, hands-free access with the LiftMaster SOS 12 Siren-Operated Sensor — a practical Intercom & Entry Accessories solution for commercial and residential gates. Designed to detect the authorized 'Yelp' siren tone for 3 seconds, the SOS 12 sends an instant trigger to your gate operator so emergency vehicles can pass without stopping, dialing codes, or using keys. Built with a NEMA 4 enclosure, larger internal gaskets and an up-front microphone, this siren-operated sensor offers durable weather protection and faster detection than older designs. The kit ships with the SOS XII sensor, a reflective sign and a CD recording of the 'Yelp' tone for verification and simple setup. Ideal for property managers, facilities teams and contractors, the LiftMaster SOS 12 improves emergency access while preserving perimeter security and monitoring workflows. Make your gates 911-accessible and reduce response delays — add this reliable, industry-ready siren sensor to your intercom and gate operator setup today.

• Enables instant emergency vehicle access by automatically opening gates when the 'Yelp' siren is detected for 3 seconds
• Cost-effective retrofit for existing gate operators to ensure 911 accessibility without keys or codes
• Weatherproof NEMA 4 enclosure and larger internal gaskets protect electronics for reliable outdoor performance
• Fast, up-front microphone and refined circuitry for rapid siren recognition and minimal false triggers
• Includes SOS XII siren sensor, reflective sign and 'Yelp' recording CD for easy installation and testing