Tag: nighthawk co detector err message

These Nighthawk CO detectors have a life span of five to seven years. You can change the batteries of these ...

If you hear your carbon monoxide detector beeping, do not ignore the alarm. Leave immediately because exposure can quickly lead ...

An Err message may be due to an End-of-Life warning. Seven years after initial power-up, this unit will chirp every ...

If you hear your carbon monoxide detector beeping, do not ignore the alarm. Leave immediately because exposure can quickly lead ...