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Question About BRK electronic Smoke Alarm #4120B
How do you replace the battery in the model #4120B...

How do you replace the battery in the model #4120B smoke alarm? We cannot see how the battery nodes connect to anything, so it looks as if the battery is just sitting inside the plastic compartment.

Asked by Anne on 02/04/2015 0  Answer

ManualsOnline posted an answer 9 years, 11 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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