SONOFF SNZB-02D Zigbee LCD Smart Temperature Humidity Sensor


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【Remote Real-time monitoring】SNZB-02D sensor will monitor the temperature and humidity in real time on the APP remotely or display screen, with up to 120m/400ft coverate.
【High Accuracy & 5s Fast Refresh】Built-in Swiss-made smart hygrometer sensor that gives you more accurate readings maintaining ±0.2°C/±0.4°F accuracy in temperature and ±2%RH accuracy in humidity, refreshes readings every 5 seconds.
【Large LCD screen display】Use large LCD display to view the real-time values of temperature humidity clearly and dynamically, the intuitive display icons let you check the room conditions and battery status even easier than ever.
【App notifications】You’ll receive instant alerts from your phone when the temperature or humidity exceeds your set comfort level.
【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.

Frequently Bought Together
SONOFF NSPanel Pro Smart Home Control Panel
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SONOFF SNZB-02D is a Zigbee temperature and humidity sensor with 2.5 inch LCD display with large bold numbers that can work with Zigbee 3.0 gateways like SONOFF Zigbee Bridge Pro, SONOFF NSPanel Pro, SONOFF ZBDongle-P/E, Alexa with Built-in Zigbee Hub,etc to monitor your home's temperature and humidity for a comfortable life,  and there are icons to indicate Hot/Cold/Dry/Wet air conditions, reminding you to adjust your humidifier or dehumidifier accordingly to achieve optimal comfort, also power icons for you to know the current power usage, the high accuracy built-in swiss-made sensor ensures accurate measurement of room temperature and humidity,  the temperature is accurate up to ±0.2℃ while the humidity is ±2%RH, data is updated every 5s, always gives you the latest changes in the environment.

The SNZB-02D sensor supports APP monitoring, you can not only check the current temperature & humidity on the LCD display, but also track the real-time and historic temperature or humidity data via the app on your phone, with up to 120m/400ft coverage (no obstructions and ideal conditions), you can check the latest data at any time, and once the temperature or humidity exceeds the preset range, you will receive an instant alert from the APP, you can view the temperature and humidity date by day, month, and year, the half-year curve graphs provide a clear data-changing track. you can export data as .CSV files,  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, it works with Alexa and Google Home, just ask Alexa or Google Home and you'll know the temperature or humidity.

The sensor supports 3 mounting methods - tabletop atand / magnetic back / 3M adhesive, just place the sensor anywhere you wish such as living room, baby room, kitchen, greenhouse, guitar room, reptiles terrarium, humidor, cellar or incubator to monitor temperature and humidity remotely.


Additional information

Weight 78 g
Dimensions 63 × 65 × 22.5 mm






Battery life

2 Year

Wireless Connections

Zigbee 3.0

Working humidity


Working temperature


Casing marterials


Customer Reviews

Based on 46 reviews
Stefano Ceschina
Ottimo prodotto

Di facile lettura e preciso, è possibile creare scenari interessanti

Sonoff sznb-02d

Very good product but on Google home it only shows the humidity level.

Great little sensor

Easy to set up, good accuracy. History graph a big plus. The only thing missing is the humidity in Amazon Alexa is not supported, only temperature is supported. Other than that 5 star product.

Vladimirs Bolgars

Very useful, works perfectly

Giuseppe Giannelli

Bello esteticamente, facile da installare, io lo uso con NSPANEL PRO, abbastanza preciso, funziona con eWelink Cast e con eWelink Web. Ottimo acquisto

Mohamed FLFLA
It is very very good

It is very very good

Vincenzo Leone

Contento e Soddisfatto

Stan Zurek

Great item, fast shipping! Highly recommended! A+ transaction!

Vallo Adamson
Good product!

New modern design and high quality plastic used. It seems next technology step compared to older SONOFF ZigBee sensors. Works well in eWelink app for phone, but today not supported in eWelink website nor eWelink Cast yet. Hopefully will be implemented soon.

József Lengyel

All went well.
The device is great.

SONOFF SNZB-02D Zigbee LCD Smart Temperature Humidity Sensor