1-10PCS SONOFF SNZB-02D Zigbee LCD Screen Smart Temperature Humidity Sensor APP Monitoring Work with Alexa Google via ZBBridge-P
Computer Peripherals
“The SONOFF SNZB-02D is a Zigbee 3.0 temperature and humidity sensor with a 2.5-inch LCD and a Swiss-made temperature/humidity sensor (0.2°C and ~2%RH claimed). It offers local readout, CR2450 coin-cell power (≈2 years), OTA support and clean Home Assistant/Zigbee2MQTT integration, but users should expect coarse default reporting (min ~30‑minute interval, 0.2°C / 5% change thresholds) and occasional need to re-pair or apply firmware updates to fix reporting issues.”
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Uses a Swiss-made temperature/humidity sensor for close, consistent readings
sonoff.techSwiss-made sensor ensures accurate measurement
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Zigbee 3.0 device with OTA and exposes calibration options for integration
zigbee2mqtt.ioThis device supports OTA updates
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Long-lived CR2450 coin battery design yields roughly two years of operation
cnx-software.comgood for about 2 years
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Humidity shows ~5% offset vs reference, requiring manual calibration
raspberry.tipsoffset of around 5%
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Default reporting is coarse: updates on ≥0.2°C or 5% humidity changes, min ~30 minutes
raspberry.tipsreport as soon as the temperature changes by 0.2 C
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Sensor can stop reporting; fixes require force-remove, restart, re-pair or firmware update
zigbee2mqtt.iosensor gets stuck and stops reporting
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Display unit toggle doesn’t change reported measurement unit, only what the screen shows
zigbee2mqtt.iotoggle the display between Celsius and Fahrenheit