Do Smart Smoke Detectors Expire? Share April 27, 2022 Dm4r Technology Smart smoke detectors are quite a bit more expensive than their “dumb” counterparts, so it’s only natural for people to consider their lifespan and replacement costs. Here’s what you need to know about the lifespan of smoke alarms. Read This Article on How-To Geek › Source : Do Smart Smoke Detectors Expire?