what are the red and green lights on a smoke detector

Jul 08, 2013 1 Replies

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Red is for when the alarm is actively sounding and detecting smoke and/or extremely high temperatures, it should not be lit otherwise.

- Green is for everything's working fine with the detector, these can be a steady or blinking green.

- Some units have the green change to yellow or orange if a problem with the detector is registered, dusty, low battery or actual malfunction.

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