My
Kidde "CO" (Carbon Monixide) detector died today. I found out that these detectors (Smoke Detectors Included) have a UNIT Shelf life. This means the UNIT detector...which has a small radioactive (nuclear) element in it will die at about seven years of service. My UNIT went for eight years.
I NOW (Today) have a NEW UNIT which is almost identical to the old one except it Now can detect Flammable GAS as well as CO. (New Software)
It will also tell you when it has OUTLIVED it's usefullness...BY displaying "END"..on the display.... Essentially saying
..I AM DEAD Replace Me.
Bottom Line: These detectors have a
Life Span..erepective of just changing the battery's.
NB