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

I havea a home with 15 BRK 4120B that i have randomly go off (ie it will start beeping like low battery but then go into full alarm). Replacing batteries does not fix the issue. I want to replace all of the alarms in the house. Do you have newer model that can use the same ceiling mount/hardwire connection?

Asked by John on 02/02/2009 1  Answer

ManualsOnline posted an answer 15 years, 9 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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