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Question About Nighthawk Carbon Monoxide Alarm 900-0081
my nighthawk alarm started beeping about every 25 ...

my nighthawk alarm started beeping about every 25 to 30 seconds and the only way to stop it was to remove it from the electricity supply, i opened doors and windows but it made no difference. I took the alarm into a different room but it carried on beeping as you know it has a very high pitched beep.

Asked by on 09/27/2013 0  Answer

ManualsOnline posted an answer 11 years 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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