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Question About BRK electronic Smoke Alarm 4120B
How long do these units last? We have several in ...

How long do these units last? We have several in the house and last night one went off and set them all off. Do we need to replace them all?

Asked by John on 06/27/2011 1  Answer

ManualsOnline posted an answer 13 years, 5 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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