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

How many years is a detector good for, when should it be replaced? Mine was assembled 8.20.01.

Asked by Victori on 10/01/2008 2  Answers

ManualsOnline posted an answer 16 years ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

Robert posted an answer 15 years, 4 months ago

0 Mine was assembled 4/27, 1999, has just recently started to malfunction. So, would be safe to say it has served its useful life.
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