Why Do Carbon Monoxide Detectors Expire. If your CO alarm was manufactured before 2013 it has a seven-year life. Most carbon monoxide alarms have a lifespan of about seven years before they lose efficacy and because of legislation passed in many states back in 2011 many families devices expire right about now.
If you ever think they dont expire then you are in for a long thing. It is the day your unit was manufactured. Its not always easy to know why the device is beeping especially if you have a combination smoke detector and carbon monoxide alarm together in one device.
If the unit continues to beep or chirp.
Carbon Monoxide is a real hazard and if you have a gas burning appliance in. Leaving old devices in place puts people at risk of serious. Do Carbon Monoxide Detectors Expire. Why Do Carbon Monoxide Detectors Expire.