Adding Wi-Fi doesn’t always turn out to be as smart as it sounds. A smart smoke detector turns out to be dumber than I thought, even with Wi-Fi added.
Smart smoke detectors will let you know if a fire breaks out when you aren’t home, but other than that they don’t offer any extra benefits over a “dumb” model. And these devices introduce a problem: Most smart smoke detectors exclude one of two sensors to alert you about a fire. Every smart model I tested had only a photoelectric sensor, which picks…

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