Tag: carbon monoxide monitor chirping

Most hard-wired smoke detectors use a 9-volt battery that is supposed to kick in if your home loses electricity. When ...

4 Beeps and a Pause: EMERGENCY. This means that carbon monoxide has been detected in the area, you should move ...

Three beeps, at 15-minute intervals = MALFUNCTION. The unit is malfunctioning. ... Five beeps, at 15-minute intervals = END OF ...