2GIG Carbon Monoxide Detector Batteries

Find the image of your carbon monoxide detector below to view instructions on how to complete your battery replacement.

Once you've replaced the batteries, the error on your panel should clear within one hour. If you would like to clear the error manually, click here.


2GIG-CO3-345 Carbon Monoxide Detector:

Twist sensor counter-clockwise to remove from base, then remove and replace CR123A battery.

2GIG_Carbon_Monoxide_Detector_Battery_Replacement.jpg

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Honeywell 5800CO Carbon Monoxide Detector:

Twist sensor counter-clockwise to remove from base, then remove and replace CR123A battery.

Honeywell_Carbon_Monoxide_Detector_Battery_Replacement.jpg