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Question About Nighthawk Carbon Monoxide Alarm KN-COPP-B
Users Manual...

We are trying to put new batteries in it and it keeps erring. Not sure how to fix it or reset it because hitting the reset button doesn't work.

Asked by Rachell on 09/03/2011 0  Answer

ManualsOnline posted an answer 13 years, 1 month 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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