Carbon monoxide (CO) is a gas that can kill you quickly. It is called the “silent killer” because it is colorless, odorless, tasteless and non- irritating. That is why we must have a CO monitor in the house however, if your device is not ready to warn you, this will cause a vulnerable situation.
During a home walkthrough, a quality Home Watch Service should pick-up on audible alarms and notice abnormalities like this defective CO sensor.
JP at Home Watcher LV
Las Vegas NV