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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, 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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