First Alert CO3-B01-T Battery-Operated Carbon Monoxide Alarm Size:9V Alkaline (1), 85dB at 10 feet Delivering faster

Delivering faster

Precise hook angle for efficient cutting

Cooking Odors

The combination smoke and CO alarm's built-in 10-year sealed battery provides ongoing power for the life of the alarm

First Alert CO3-B01-T Battery-Operated Carbon Monoxide Alarm Size:9V Alkaline (1), 85dB at 10 feet Delivering fasterInstall the First Alert CO3 B01 Battery Operated Carbon Monoxide for reliable detection against carbon monoxide leaks. It's convenient maintenance features and flexible wall mount design makes it easy to add CO detection throughout your home. Easy access battery drawer for battery replacements Easy installation with flexible wall placement End of life warning lets you know when it's time to replace the alarm Product Overview Alerts you to CO threats