First Alert Carbon Monoxide Alarm, 85 dB, Alarm: Audible, Electrochemical ● Compatible with Factory Key Fobs ● Includes 120dB Siren for Deterrence ▶ Lock In Peace of Mind
The First Alert CO400 carbon monoxide alarm utilizes a electrochemical carbon monoxide sensor that lasts for up to five years to detect carbon monoxide. This carbon-fiber monoxide detector is battery powered, making it portable and easy-to-use anywhere, even in the event of a power outage. When carbon-fiber monoxide levels become elevated, a loud 85 dB alarm alerts you to the threat.





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