Question about First Alert SA302 Dual System Smoke Detector

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Alarms go off for about 30 seconds - usually in the middle of the night - for no reason.

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  • Julio Hernandez
    Julio Hernandez May 11, 2010

    check the battery, if it has one. the best thing to do and for your safety, replace it. Julio

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  • 188 Answers

Dust off and replace battery

Posted on Aug 02, 2009

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