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Question About Nighthawk Carbon Monoxide Alarm KN-COPP-3
detector going off...

detector on 1st floor has gone off and registered 97 twice, two weeks apart. It returns to zero on its own. Is there a problem?? It did not show the low battery symbol either time. We also have the same type of detector on the 2nd floor, only about 30 ft. from the 1st floor detector. The 2nd floor detector did not go off.

Asked by Noreen on 01/04/2009 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

Joy posted an answer 15 years, 8 months ago

0 Mine is doing the same thing. Registering 97 - battery is fine plus I have mine plugged into an electrical socket. ODD
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