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 …

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 alarm to let …

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 be required …

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 single test and silence …

Jan 1, 2008 · Quick plug-in power connector for easy installation. 120-volt AC inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms. This 2-in-1 combination smoke …

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 using ionization …

May 6, 2012 · View and Download First Alert SC9120B user manual online. Smoke & Carbon Monoxide Alarm. SC9120B carbon monoxide alarm pdf manual download. Also for: 9120, 9120b.

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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Manual First Alert SC9120B. View the First Alert SC9120B manual for free or ask your question to other First Alert SC9120B owners.