2GIG-CO3-345—Battery Replacement

When it is time to replace the battery in your 2GIG-CO3-345, you will see an alert on your system panel, as well as a notification in the Brinks Home™ Mobile App.

Follow the instructions below to replace your battery and clear the alert from your system. The 2GIG-CO3-345 carbon monoxide detector requires a CR123A 3-volt lithium battery, which can be purchased at your local hardware, mass retailer, or battery store. You may also order these online here or at your preferred online retailer.

Step-by-Step Instructions:

1. Turn the sensor counter-clockwise to remove from baseplate.

001 2GIG-CO3-345 Remove from baseplate

2. Remove and replace the CR123A 3-volt lithium battery.

002 2GIG-CO3-345 Remove Replace CR123A Battery

3. Align the sensor over the baseplate, and turn clockwise while pressing against the baseplate to reinstall.

003 2GIG-CO3-345 Return to baseplate

4. Check if the low battery status has cleared or go to the following link for further instructions on clearing the error from the panel memory: GC2 GoControl - Silence Reset Alarm.