First Alert Basic Carbon Monoxide Alarm CO400 w Battery 5 Year NIP Brand New

The First Alert CO400 Carbon Monoxide Alarm utilizes a electrochemical carbon monoxide sensor that lasts for up to 5 years to detect carbon monoxide. This carbon monoxide detector is battery powered, making it portable and easy to use anywhere. When carbon monoxide levels become elevated, a loud 85dB alarm alerts you to the threat. Model number C0400 Alerts to dangerous carbon monoxide levels Most accurate electrochemical carbon monoxide sensor technology Battery-operated design works almost anywhere Loud 85dB alarm sounds when carbon monoxide levels are elevated Single test/silence button for simple operation 5-year limited warranty Includes 9V battery