YSK Your smoke detectors should be replaced every 7-10 years

https://slrpnk.net/post/34507518

This 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:

https://youtu.be/DuAeaIcAXtg

There are two types of smoke alarm. One of 'em ain't so good.

YouTube

Hehe.

You want to bet your life on that? You want to bet the life of your kids on that?