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Question About Nighthawk Carbon Monoxide Alarm KN-COPP-3
My KN-COPP-3 2705 carbon monoxide detector reads 8...

My KN-COPP-3 2705 carbon monoxide detector reads 888 and beeps. Replacing battery and pressing Test-Reset does not help. After a while it reads Err.

Asked by jimmie on 02/01/2013 1  Answer

ManualsOnline posted an answer 11 years, 2 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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