A quick perusal of the instruction sheet educated me that the CO alarm was the “end of life signal” operating state, and it would need to be replaced. The word “teardown” near-immediately popped into my still-groggy brain.
V128FBPT Fire and Burglary Alarm Control Panel, Security Control Panels, Security Controls, Controllers & Control Panels, Security Control Panels
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Carbon Monoxide detector tear down
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