SONOFF SNZB series ZigBee sensors: temperature and humidity, motion, door and window opening, water leaks, human presence. Almost all of them need a ZigBee gateway — without one the sensor will not reach your phone, so it pays to check what you already have at home; TP-Link Tapo sensors only join their own ecosystem. A presence sensor differs from a motion one in that it also sees a person sitting still in the room, the sort a motion sensor “loses”.
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SONOFF SNZB series ZigBee sensors: temperature and humidity, motion, door and window opening, water leaks, human presence. Almost all of them need a ZigBee gateway — without one the sensor will not reach your phone, so it pays to check what you already have at home; TP-Link Tapo sensors only join their own ecosystem. A presence sensor differs from a motion one in that it also sees a person sitting still in the room, the sort a motion sensor “loses”.