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.
Easy Installation - simply plug-in to a standard, 120V outlet in your home
Test-Hush Button makes testing the detector or silencing false alarms easy
Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
Chirp signals when alarm replacement is required
85-decibel alarm announces when carbon monoxide is detected
2-AA battery backup provides protection during a power outage