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How-To Geek on MSN
You already own smart home sensors, even if you've never bought any
Use the signals you already have.
Eufy has unveiled three new smart home sensors in quick succession, including a long-life motion sensor, a dedicated glass break detector, and a compact smart smoke alarm. The new devices all connect ...
When smart home devices were first introduced, motion sensors were among the most interesting. This sensor would use differences in light to detect activity in a given space—impressive, but imprecise.
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