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Question About Nighthawk Carbon Monoxide Alarm 2705
Have a nighthawk 2705 CO tester. Battery went bad....

Have a nighthawk 2705 CO tester. Battery went bad. put in new battery get 888 and flashing red light for a few seconds then Err beep and flashing red light if I push test/reset get same results over and over

Asked by Dave on 09/17/2014 0  Answer

ManualsOnline posted an answer 9 years, 7 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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