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Question About BRK electronic Smoke Alarm 4120B
BRK 41020B smoke detetor...

One of our 5 smoke detectors of this model have failed and we need to replace it. Do we have to use this same model to replace it to insure that all of the detectors work properly? If so is that model (4120B) still available for purchase? Ours were made in Nov 1999. Thanks

Asked by G. Goff on 09/25/2010 1  Answer

ManualsOnline posted an answer 14 years, 2 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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