The First Alert® battery-operated carbon monoxide detector utilizes an electrochemical sensor that alerts you at the first signs of increased CO levels in your home. The unit features easy access to the (2) AA batteries included. The alarm is also equipped with a single mute button for false alarms, a test alarm function and an end-of-life signal. This product is backed by a 7-year limited warranty.
- Basic battery powered - easy batter replacements
- Simple single test and silence button
- End of life timer will let you know when it's time to replace
- Low battery warning and silence
- Tested to the highest industry standards for safety