Basic CO Alarm w/ 9V Battery

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