My carbon monoxide detector is beeping and the number 242 flashes on the screen. I believe the battery is ok, but cannot find my manual. We are ventilating the house, as we are not experiencing flu-like symptoms. Can anyone help with a manual for the Nighthawk Carbon Monoxide Detector, model KN-COPP-B. Thank you.

Asked by Cindy on 03/22/2009 0  Answer

ManualsOnline posted an answer 15 years, 6 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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