Yesterday while cooking I set off the smoke detector, no I did not burn anything. They go off when I cook over a high heat. And yesterday once they started going off they would not stop. I ended up having to disconnect them all (they are hard wired with an interconnect) and I replaced them this morning. Aaaaaaaand let me tell you, I had a sleepless night last night knowing there were no detectors installed.
https://www.southernliving.com/how-often-should-you-replace-smoke-detectors-8774122
Not many, but I don’t buy a lot of $25 products in this day and age. Sometimes electronics fail early, that’s why there’s a warranty. I also don’t go complaining about something when it would have been replaced by warranty either.
The fact they warrant the devices through their entire expected lifespan instead of only a year is notable.