BRK® Direct Wire Ionization Smoke Alarm With Battery Backup.
- 120V AC With 9V Battery Backup
- Ionization Smoke Sensor
- Latching Alarm Indicator: Remembers Which Unit Initiated An Alarm
- Two Locking Features: Pins Are Provide To Lock Battery Drawer And/Or Alarm To Base
- Single/Test Silence Button
- 10-Year Limited Warranty
- Mfg #9120BA