Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button

Easy Installation - simply plug-in to a standard, 120V outlet in your home, 2-AA battery backup provides protection during a power outage, 85-decibel alarm announces when carbon monoxide is detected, Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested, Test-Hush Button makes testing the detector or silencing false alarms easy, End of life chirp notifies you when the alarm needs to be replaced, UL listed with a 10-Year limited manufacturer warranty on the alarm only (not a battery performance claim). Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that replacement is needed.