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.
Detects Smoke and Carbon Monoxide: The First Alert Combination Smoke and Carbon Monoxide Alarm detects two threats, smoke and carbon monoxide. This 2-in-1 hardwired alarm has lights on the face of the alarm to let you know the threat. It has a test/silence button for quick and easy testing.
Connect to Other Alarms for Greater Coverage: This hardwired combination smoke and carbon monoxide detector can be connected to other compatible BRK or First Alert combination CO and smoke detectors within a single-family residence. Once one alarm is triggered, all connected CO and smoke alarms will sound. The latching alarm indicator on the hardwired CO and smoke alarm automatically identifies which detector initiated the alarm – even after the conditions that set off the alarm have subsided.
Easy to Install and Maintain: The First Alert Combination Smoke and Carbon Monoxide Alarm integrates with existing wiring and features the easy adapter plug, which makes installing the detector quick and easy. The side-load backup battery compartment makes changing the 9-volt battery simple. Tamper-resistant locking pins prevent unauthorized disabling of the hardwired CO and smoke alarm.