Kidde Firex Plug-In Carbon Monoxide Detector with AA Battery Backup (6-Pack)

Kidde KN-COB-DP2 includes a AA battery backup that provides continuous monitoring of Carbon Monoxide (CO) levels, even during power outages. The KN-COB-DP2 will detect and store measured levels of concentrated CO as low as 11 and up to 999 PPM with its peak level memory display. The tamper resist feature can be activated to deter tampering or theft of the unit by sounding a loud alarm if the unit has been unplugged or come loose from the outlet.|Unit goes into constant alarm mode if it has been unplugged or has come loose from the outlet|Provides continuous protection even during power outages|Hush feature silences low battery chirp|5 year limited warranty|AA battery backup provides protection during power outages|Carbon monoxide detectors utilize an electrochemical sensor to detect fire hazards and sound an 85 db alarm when a hazard is detected|*Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.