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BRK 10-Year Battery Hardwired (with Battery Back-Up) Ionization Interconnected Smoke detector

First Alert BRK 10-Year Battery Hardwired (with Battery Back-Up) Ionization Interconnected Smoke detector

4.4
615
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65 Questions
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Why did I not get a warning that the battery died after 4 months?? I didn't even know it died.


Test your smoke detectors now and then, that is what the button is for. Monthly is good. If it passes the test the battery is okay.

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