The First Alert CO605 Carbon Monoxide Plug-In Alarm features an electrochemical CO sensor to alert you to dangerous carbon monoxide. This personal carbon monoxide detector plugs into any standard electrical socket to monitor CO levels in your home, office, or other space. The simple, user-friendly design features battery backup to allow for continuous monitoring, even in the event of a power outage.

• One button to quickly test or silence nuisance alarms
• Requires (1) 9V batteries (included)
• Electrochemical sensors
• 7 year limited warranty

It is recommended to place one on every level of the home and one in each sleeping area.

Product No. 1039734/CO605