First Alert BRK 9120B 120V Smoke Alarm, 9V Battery Backup Size:120V Packaged with a 4-way steel

Packaged with a 4-way steel 2-3/8' backset square face deadlatch or adjustable latch (AL)

Use on furniture

Use On Wood

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First Alert BRK 9120B 120V Smoke Alarm, 9V Battery Backup Size:120V Packaged with a 4-way steelDesigned 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