First Alert BRK 9120B 120V Smoke Alarm, 9V Battery Backup Size:120V Meets UL 1715

Meets UL 1715

all digital TV broadcasts and FM radio signals

Energy Star: yes

Ideal For High Velocity Heating/Cooling Systems

Aluminum 1/64" - 3/64"

First Alert BRK 9120B 120V Smoke Alarm, 9V Battery Backup Size:120V Meets UL 1715Designed to help promote household safety, the First Alert Hardwired Smoke Alarm with Battery Backup can provide early warning of fire. This hardwired smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast flaming fires. Features Ionization Sensor Reliably Detects Flaming Fires: The First Alert Hardwired Smoke Alarm with Battery Backup comes equipped with an ionization sensor to provide the earliest possible warning of