Liftmaster 50-SOS12 Siren Operated Sensor

Product Description

The LIFTMASTER 50-SOS12 is a siren operated sensor designed to detect audible alarm siren signals and trigger a corresponding access control or gate response. The unit monitors for active siren tones and converts that audio event into a relay output or control signal, allowing automated systems to react to emergency alarm conditions. It is sold as an individual unit and is typically installed by licensed access control technicians, security integrators, or gate system professionals.

The 50-SOS12 is used in commercial and residential access control applications where gate operators, door controllers, or barrier systems must respond automatically to emergency vehicle sirens or building alarm events. It is commonly integrated into telephone entry and gate access systems, allowing the gate or entry point to open or respond when an active siren is detected in the immediate area.

Key Features

• Detects audible siren signals and converts the event to a usable control output
• Supports automated gate and access control system integration
• Sold as a single unit for straightforward replacement or new installation
• Designed for telephone entry and access control system categories

Compatibility

Designed as an OEM-style replacement or accessory for LIFTMASTER telephone entry and access control gate systems. No specific model compatibility data was provided in the product input.

Installation Notes

Installation is typically performed by a licensed access control or gate system technician. Power down the access control panel or gate operator before wiring or replacing this sensor. Follow local codes and the manufacturer wiring diagram for proper relay output connections. Verify sensor placement allows clear acoustic detection of siren events without physical obstruction.