What is the expected life of the various types of smoke/heat detectors?
The cheap ones need a battery change every year.
I have some ten year battery (or that is what I was told).
There are the ones connected to the wiring.
What is the expected life of the various types of smoke/heat detectors?
The cheap ones need a battery change every year.
I have some ten year battery (or that is what I was told).
There are the ones connected to the wiring.