Xiaomi Smart Sensor Set pairs a Zigbee gateway (Mi Control Hub) with door/window magnetics, IR motion sensors, and a programmable wireless switch; it offers local Zigbee connectivity and Bluetooth/BLE mesh support for on‑premises automations but suffers from Xiaomi-specific Zigbee quirks (intermittent disconnects, nonstandard pairing) and limited reporting configurability. Good for hobbyists wanting gateway-based local control (firmware 3.3.0+ and Zigbee connectivity) but expect occasional pairing issues and signal/compatibility troubleshooting.
Best for DIY/home‑assistant users who want gateway-based local Zigbee sensors and programmable switches; avoid if you need rock‑solid Zigbee reliability or per-sensor reporting tweaks.
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