The name speaks of motion, but the category actually covers a whole family of sensors — motion and presence, door and window opening, temperature and humidity, water on the floor, and smoke and carbon monoxide. A presence sensor (SONOFF SNZB-06P) differs from an ordinary motion sensor in that it notices a person sitting still as well: the light no longer goes out in the middle of your work. Most ZigBee sensors need a hub and the Tapo ones pair with a TP-Link hub — settle that before ordering the sensors.
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