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Question About First Alert Smoke Alarm 9120B
Installed new batteries and detectors are still ch...

Installed new batteries and detectors are still chirping. I need help before Christmas. There are 4 detectors on the second floor and they chirp at each other back and forth.

Asked by Pat on 12/21/2011 1  Answer

ManualsOnline posted an answer 12 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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