To determine if your carbon monoxide non-digital alarm has reached its end of life, refer to the following:

  • When the CO alarm emits a quick beep every 30 seconds and the red LED flashes, the unit has reached the end of its 7 or 10 year life.

  • Replacing the batteries will not stop the chirp if the unit is at the end of its useful life.

When an alarm has reached the end of its life, it needs to be replaced to continue protecting your home.


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