First Alert 9120B AC/DC Smoke Detector

120V AC wired-in smoke alarm with 9V battery back-up. Ionization sensor detects fast flaming fires. Battery compartment swings out, making battery installation easier and faster. Universal mounting bracket centers on any size electrical box up to 4" octagonal. Locking feature deters removal of battery. Silence button quiets alarm while occupants respond.

First Alert 9120B AC/DC Smoke Detector
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First Alert 9120B AC/DC Smoke Detector
A15706
$15.99
0.7 lbs

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First Alert 9120B AC/DC Smoke Detector
Shipping Weight 0.65 lbs
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