SC9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup

The First Alert SC9120B Hardwired Combination Smoke and Carbon Monoxide Alarm is a hardwire alarm with battery backup. The hardwired detector includes a 9-volt battery backup for continued function in the event of a power outage. This combination fire and CO detector features a test/silence button and tamper-resistant locking brackets. The alarm can be connected to other compatible BRK and First Alert hardwired smoke and carbon monoxide detectors and comes equipped with easy-adapter plugs so there is no need to rewire. Its latching alarm indicator automatically identifies which detector initiated the alarm – even after the conditions that set off the alarm have subsided.

• Can connect to other compatible BRK or First Alert CO and smoke detectors
• Light indicates if the alarm is for smoke or for carbon monoxide
• Single test/silence button for simple operation
• Hardwired combination CO and smoke alarm features battery backup for continued monitoring