BRK RM4 Relay Module for Smoke and Smart Interconnect

Bring automatic device control to your fire and security system with the BRK Electronics RM4 Relay Module. Designed to trigger auxiliary equipment the moment any interconnected BRK or First Alert alarm sounds, this relay module streamlines emergency signaling and enhances monitoring across facilities. The RM4 is 120V AC-powered and uses Form-C contacts, allowing dependable switching between normally open and closed circuits to operate lights, door strikes, horns, signs or remote notification systems. Its wired connectivity supports placement next to an AC alarm or in a remote junction box, giving installers flexible integration options for surveillance and building automation. Built for commercial and residential applications, the RM4 supports door, doorbell, entry/exit notification and siren functions while meeting expectations for reliability and uptime. Backed by a 10-year limited warranty from BRK Electronics, it delivers durable performance for critical safety and security installations. Add the RM4 to your fire and security architecture to ensure coordinated, instantaneous responses during alarms — order now or contact our integrators for system configuration and monitoring guidance.

• Ensures auxiliary devices activate automatically during alarms, improving site-wide safety and response
• Compatible with BRK smoke, heat and Smart Interconnect CO alarms for seamless integration into existing systems
• 120V AC-powered with Form-C contacts for reliable switching between normally open and closed circuits
• Can be mounted locally or wired remotely to trigger lights, door locks, sirens or notification systems for better monitoring
• Compact, junction-box installation with a 10-year limited warranty for long-term peace of mind