nocturneYSK Your smoke detectors should be replaced every 7-10 years
GorkThis is only true for the Americium based smoke detectors. The newer photoelectric cell fire detectors don’t decay like Americium detectors, and as long as you replace the battery it’ll be good for however long it’s internal components (capacitors and whatnot) will last.
Technology Connections has a good video about this subject:
There are two types of smoke alarm. One of 'em ain't so good.
According to the one i just had to replace, combo carbon monoxide detectors need to be replaced. I don’t know how the carbon monoxide part works, but i wonder if it’s a reagent or something.