Forum Discussion
Gearitis
Sep 11, 2018Explorer
I would venture to say that you have photoelectric smoke detectors and that when installed they had accumulated dust or there is moisture on where the light source enters.
Here is a link to the National Fire Protection Association (NFPA) on the difference between smoke detectors and how they work.
Clicky
Here is a link to the National Fire Protection Association (NFPA) on the difference between smoke detectors and how they work.
Clicky
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