Sonoff SNZB-02WD vs Sonoff LCD Smart Temperature Humidity Sensor

Sonoff LCD Smart Temperature Humidity Sensor for indoor use, thanks to a lower price, documented Google Home, Alexa and Home Assistant support and a low-battery alert. Sonoff SNZB-02WD wins for anywhere damp or outdoors, since it is IP65 rated where the other is indoor-only.

Only Sonoff SNZB-02WD, whose IP65 rating covers rain, splashes and dust, which is why owners put it in garages, greenhouses and log stores. Sonoff LCD Smart Temperature Humidity Sensor has no weather resistance rating and is documented as indoor-only.

Yes, both carry an LCD showing temperature and humidity without opening an app. Sonoff LCD Smart Temperature Humidity Sensor specifies a 2.5 inch panel, while the screen size of Sonoff SNZB-02WD is not documented, though owners describe it as easy to read at a glance.

Both send temperature and humidity alerts and both log history you can review or export. Sonoff LCD Smart Temperature Humidity Sensor additionally reports low battery, so you get a warning before it stops sending readings.

Yes, both are Zigbee devices with no Wi-Fi or Bluetooth fallback, so a Zigbee coordinator is required. Owners of both models report easy pairing with Home Assistant through ZHA or Zigbee2MQTT, and neither supports Apple HomeKit or Matter.

Anyone monitoring a garage, greenhouse, shed or covered outdoor space where humidity and splashes would kill an indoor sensor, and who wants the reading visible on the unit. For ordinary rooms, Sonoff LCD Smart Temperature Humidity Sensor costs less and alerts on more.