SONOFF SNZB-02D is a Zigbee 3.0 temperature and humidity sensor with a 2.5" LCD, CR2450 coin cell, and reported ~5s update rate; it offers magnetic mounting, eWeLink and Home Assistant support, and measures -10°C to +60°C and 5–95% RH. Solid choice for smart-home integration where a visible local readout and long battery life matter, but limited display visibility at night and modest environmental range make it less suitable for extreme conditions.
For smart‑home users who want a Zigbee 3.0 humidity/temp sensor with a visible LCD and flexible mounting; avoid if you need night‑visible display or sub‑-10°C/above‑60°C monitoring.
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