SONOFF SNZB-02D Zigbee LCD Smart Temperature Humidity Sensor
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【Remote Real-Time Monitoring】Monitor temperature and humidity in real time via the app or directly on the built-in display—remotely and reliably with coverage up to 120m/400ft (open space).
【High Accuracy & 5s Refresh Rate】Equipped with a Swiss-made sensor for precise measurements: ±0.2°C / ±0.4°F temperature accuracy and ±2% RH humidity accuracy. Data updates every 5 seconds for timely insights.
【Large LCD Display】Features a clear, easy-to-read LCD screen that dynamically shows real-time temperature and humidity. Intuitive icons also indicate room conditions and battery status at a glance.
【Instant App Alerts】Receive push notifications on your phone when temperature or humidity levels go beyond your preset comfort range.
【Data Logging & Export】Includes up to 6 months of free cloud storage. View hourly trends, check historical highs and lows, and export data in file format for further analysis.
Technical details, troubleshooting or setup tips? Access the SNZB-02D knowledge center for all the info you need.
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Monitor your home's temperature
and humidity for a comfortable life
SONOFF Zigbee LCD Smart Temperature Humidity Sensor
High Accuracy
Built-in Swiss-made sensor ensures accurate measurement of room temperature and humidity.
Data Storage & Export
Up to half-year free cloud storage, and most accurate enough to view hourly data. you can also check the highest and lowest values at any hour or day and data can be exported as files.
Alert via APP
You'll receive instant alerts from your phone when the temperature or humidity exceeds your set comfort level.
Zigbee Standard Compatible
Support zigbee gateways that use Zigbee3.0 protocol, compatible with most hubs.
Add to Home Assistant
Add SONOFF devices to Home Assistant for your home automnation through eWeLink add-on
120m/400ft Coverage
With up to 120m/400ft coverage (no obstructions
and ideal conditions), let you check the latest data
at any time.
Wide Variety of Applications
Work with Alexa and Google Home
Just ask Alexa or Google Home and you'll know the temperature or humidity.
Three Mounting Choices
Durable stand, built to last no matter what type of installation.
Stand
Magnetic back
3M adhesive
Smart Scene
The temperature and humidity of the sensor can be set as triggers,
such as setting the humidifier to turn on when the humidity is less
than 40%, adjusting to the comfort temperature and humidity at
any time for your health.
Specs & User Manual
SONOFF SNZB-02D is a Zigbee Smart Temperature and Humidity Sensor that offers precise, real-time monitoring of indoor climate with ±0.2°C and ±2% RH accuracy. Its large LCD screen clearly displays current temperature, humidity, and battery status. You can remotely track conditions via the app, receive instant alerts for abnormal changes, and access up to 6 months of cloud-stored data with export capability. Ideal for maintaining optimal comfort.
User Manual (PDF)SNZB-02D
White
CR2450(3V)
Zigbee 3.0
5-95%RH(non-condensing)
-9.9-60°C
PC+LCD
FAQ
1. What does “accuracy” mean? What is the accuracy of the SNZB-02D?
Accuracy refers to the maximum deviation between the measured value and the true value.
The SNZB-02D offers high accuracy:
Temperature: ±0.2°C / ±0.4°F
Humidity: ±2% RH
2. What is the data reporting interval of the device?
If there is a change in value, the shortest reporting interval is 5 seconds.
If no change occurs within an hour, the device will report at least once every 60 minutes.
3. What does “resolution” mean? What is the minimum resolution of the SNZB-02D?
Resolution refers to the smallest measurable change that causes the displayed value on the SNZB-02D to update. In simpler terms, it indicates how precise the readings appear on the screen.
The minimum resolution of the SNZB-02D is:
Temperature: 0.1°C / 0.1°F
Humidity: 0.1% RH