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First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery
First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery
First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery
First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery
First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery
First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery
First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery
First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery

First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery

  • $36.99

About this item

  • This alarm runs on 120-volt AC power and must be connected directly to your home’s electrical system.
  • Comes with a 9V battery that provides power in case of an electrical outage. It is not a battery-only alarm.
  • Can be linked with up to 12 other First Alert or BRK hardwired smoke alarms for whole-home safety
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