How to replace battery in First Alert Smoke Detector
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YouTubeJonathan Collegio
How to replace battery in First Alert Smoke Detector
How to stop a chirping smoke detector. Remove, install and replace a new battery (9 volt battery) in a First Alert plug in smoke detector and carbon monoxide detector. First Alert Model No. 9120B First Alert 9120B
160.8K viewsDec 28, 2019
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