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Question About Nighthawk Carbon Monoxide Alarm KN-COPP-3
how do I tell if the unit is working properly? I p...

how do I tell if the unit is working properly? I pushed the test button, the screen flashed the numbers 168 then an alarm sounded.

Asked by Sharon on 01/17/2014 1  Answer

ManualsOnline posted an answer 10 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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