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Question About Nighthawk Carbon Monoxide Alarm None
False alarms...

This product started to send a siren sound today and I have no flames in my house. Reading was 438 I have an outdoor furnace that sends hot water into the house and also heats the hot water. I can't understand how I could have Carbon Monoxide. I have no open flames in my house.

Asked by Jim on 12/01/2008 0  Answer

ManualsOnline posted an answer 15 years, 10 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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