Beat the Beep: Replace Aging CO Alarms – They Don’t Last Forever
Carbon monoxide (CO) alarms have been required in nearly every residence since March of 2006. The life expectancy of carbon monoxide alarms is 5-7 years, depending on the alarm manufacturer. Many CO alarms installed after the state’s CO law was passed are now reaching the end of their useful life and need to be replaced. No home appliance lasts forever.
The life of a CO alarm begins once it is first powered up. Most CO alarms have a date of manufacture stamped on them, which can be used as a guide if the activation date was not recorded.