How Often to Change Carbon Monoxide Detector: Safe Replacement Rules
A carbon monoxide detector should be completely replaced by the manufacturer’s stated expiration date, typically after 5-10 years, or immediately when it gives an end-of-life signal, is damaged, recalled, contaminated, or fails its functional test. Replacing batteries keeps power available, but it does not renew the carbon monoxide sensor. Key Facts at a Glance How […]