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Hardwired (with Battery Backup) Ionization Interconnected Combination Smoke and Carbon Monoxide Detector

First Alert Hardwired (with Battery Backup) Ionization Interconnected Combination Smoke and Carbon Monoxide Detector

4.7
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4 Questions
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How to open the drawer to change buttrey


Hi Mari, the battery drawer has a small lever that you can use to open it. The battery drawer can be locked with a pin. If the battery drawer is locked please use needle-nose pliers or a utility knife to detach one locking pin from the mounting bracket. - Maria

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