Carbon monoxide (CO) alarms have been required in nearly every residence since March of 2006. The life expectancy of carbon monoxide alarms is 5 to 7 years, depending on the alarm manufacturer. No home appliance lasts forever. The life of a CO alarm begins when 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. To learn more about your CO alarm, contact your manufacturer.
Carbon monoxide is an invisible, odorless killer. Protect yourself and your family with CO detectors. If your CO alarm sounds, exit the premises and contact 911.