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 …

The First Alert Combination Smoke and Carbon Monoxide Alarm detects two threats, smoke and carbon monoxide, in a single device. This 2-in-1 hardwired alarm has lights on the face of the …

On a peaked, gabled, or cathedral ceiling, install the first Smoke/CO Alarm within 3 feet (0.9 meters) of the peak of the ceiling, measured horizontally. Additional Smoke/CO Alarms may …

Feb 7, 2025 · Using a 9-volt backup battery, the smoke and carbon monoxide detector can function even in the event of a power outage. Additionally, the Co smoke alarm features a …

This First Alert SC9120B Hardwired Smoke and Carbon Monoxide Detector includes a 9-volt battery backup that continues to protect you in the event of a power failure. The alarm features …

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The SC9120B hardwire alarm comes with 2-in-1 protection to detect CO you can"t see, smell or taste in the air, as well as first signs of a potential fire. This alarm works exceptionally well by …

Jun 18, 2018 · Hardwired alarm features battery backup for continued monitoring during power outages. Includes easy adapter plugs, eliminating the need to rewire. Light indicates if the …

ARCHITECTURAL AND ENGINEERING SPEC The combination smoke and CO alarm shall be a BRK Model SC9120B and shall provide at a minimum the following features and functions: