BRRM4
The 120VAC Smart Relay activates an auxiliary device when an alarm is triggered. The relay is designed for use with BRK and First Alert Smoke, Heat and Carbon Monoxide Alarms. When any interconnected alarm sounds, the relay contacts activate. The contacts automatically deactivate a few seconds after the alarm silences.

When connected to BRK or First Alert alarms, the relay can activate an alert or other auxiliary device like