my Nighthawk KN-COPP-3 carbon monoxide alarm is going off. I pressed the test-reset button to see if maybe it's a low battery issue but no LB comes up just 888. - what does that mean? Thanks

Asked by iliana on 01/20/2013 1  Answer

ManualsOnline posted an answer 11 years, 3 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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