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Question About BRK electronic Smoke Alarm 4120B
alarm going off......

...after battery replacement

Asked by on 01/29/2010 2  Answers

ManualsOnline posted an answer 14 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

jim posted an answer 14 years, 10 months ago

0 same has happened to me. multiple times. whoever designed the model 4120B should be shot. I'm not kidding. You are responsible for keeping my family awake for multiple nights because of the intermittent beeping that goes on forever.
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