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Question About BRK electronic Smoke Alarm 4120B
BRK 4120B...

We lost power in the house last night and 3 of our 4 detectors would not stop alarming. Anyone know why this would happen?

Asked by Val on 02/03/2009 1  Answer

ManualsOnline posted an answer 15 years, 10 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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