First Alert BRK SA4120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)
First Alert BRK SA4120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)
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$18.48
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$18.48
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When ordering this, we will upgrade to a current model, a plug-n-play unit. You only need to change the mounting bracket.
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First Alert BRK SA4120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm
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