The Kidde C3010-D-CA Carbon Monoxide Alarm is designed for reliable protection with its 10-year battery and advanced electrochemical sensing technology. This alarm ensures continuous monitoring of carbon monoxide levels, even during power outages, and features a clear digital display for easy reading. It mounts effortlessly and automatically activates when attached to the bracket. When it's time to replace the unit, it will alert you with a chirping sound and a notification on the display.