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Question About Nighthawk Carbon Monoxide Alarm 900-0056
Is the a useful life expectancy on a carbon monoxi...

Is the a useful life expectancy on a carbon monoxide detector. The one I have was made in 1998 and doesn't appear to be working properly. Looking for the manual to verify a test for the working condition of my detector. Thank you

Asked by Robert on 01/25/2014 0  Answer

ManualsOnline posted an answer 10 years, 8 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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