This beep is an end of life signal. CO sensors of most detectors have a lifetime of between 5 and 7 years. They become saturated over time and must be replaced.
The CO detector gives short beeps
If you hear short beeps from a CO detector that is less than 5 years old, this indicates that the detector is defective. Replace the CO Alarm as soon as possible.
Modified on: Tue, 22 Jun, 2021 at 2:05 PM
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