Battery operated with 3 AA batteries included; provides protection during power outagesBattery lockout system deters closing battery compartment without installation of batteriesTest/reset button tests the unit for proper operation and resets the carbon monoxide alarmKidde's carbon monoxide alarms meet the requirements of Underwriters Laboratories (UL)5 year warranty
Kidde KN-COB-B-LPM Carbon Monoxide Alarm
Brand: Kidde, Model: 21025778, Color: White, Size: 1 Pack