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Plug-in carbon monoxide detector with 9V battery backup ensures ongoing protection during outages, sounding a powerful 85 dB alarm upon detecting hazardous CO levels. It employs electrochemical sensor technology for dependable and precise detection, plus a convenient test/silence button. The slim unit fits any standard 120V outlet, allowing versatile positioning around the house.
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Plug-in carbon monoxide detector with 9V battery backup ensures ongoing protection during outages, sounding a powerful 85 dB alarm upon detecting hazardous CO levels. It employs electrochemical sensor technology for dependable and precise detection, plus a convenient test/silence button. The slim unit fits any standard 120V outlet, allowing versatile positioning around the house.

The right temp in just the right spot - Meet the Nest Temperature Sensor (2nd gen). Now it’s easy to manage hot and cold spots throughout your home. Just put it in your preferred room and get the right temp, right where you want it. It’s battery powered, so you can set it, then forget it’s even there.¹
| Pros for First Alert - Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector | |||
|---|---|---|---|
| There were no pros for this product— | Installation Ease, Connectivity, Overall Performance, Alarm Volume, Battery Life | Installation Ease, Connectivity, Overall Performance, Compatibility, Design | Overall Performance, Connectivity, Temperature Control, Setup Process, Accuracy |
| Cons for First Alert - Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector | |||
| There were no cons for this product— | Features, Night Light, Size | Features, Alarm Accuracy, Sensitivity | There were no cons for this product— |