Product description: Sonoff SNZB-02D - temperature and humidity sensor - ZigBee - Android / iOS application
Sonoff SNZB-02D is a versatile sensor that enables accurate measurement of temperature and humidity in your environment. The built-in high-precision sensor guarantees temperature measurements with an accuracy of ± 0.2 ° C and humidity up to ± 2% RH . The readings are refreshed every 5 seconds , allowing you to keep track of changes in the environment. Thanks to the built-in LCD display , the temperature and humidity values are clearly presented in real time. The device also integrates with popular Smart Home systems, such as Amazon Alexa or Google Home , allowing you to create automation scenarios - e.g. automatically turning on the humidifier when the humidity drops below the set level.
To work correctly, the sensor requires connection to a ZigBee gateway , which can be purchased separately.

Special features of the sensor
- High measurement precision : accurate temperature and humidity readings thanks to a sensitive sensor
- Frequent data updates : refresh readings every 5 seconds
- ZigBee 3.0 communication : stable connection and compatibility with many hubs
- Application integration : eWeLink support with data history for the last 6 months
- Voice control : works with Amazon Alexa and Google Home
- Real-time alerts : notifications when set values are exceeded
- Universal mounting : magnetic, 3M tape or tabletop
- Energy-saving LCD display : clear and convenient for everyday use
ZigBee connectivity
The Sonoff SNZB-02D sensor uses the latest ZigBee 3.0 protocol, which provides a stable and energy-saving connection with the Smart Home control unit. ZigBee is a popular wireless technology that allows the integration of various devices into one network. Thanks to it, devices communicate with each other without delay , which is crucial for home automation. ZigBee 3.0 also offers better compatibility with third-party devices, making this sensor a versatile element of your Smart Home system.
Technical Specifications of Sonoff SNZB-02D Sensor
- Temperature measurement range: -10°C to 60°C
- Humidity measurement range: 0% to 100% RH
- Temperature measurement accuracy: ±0.2°C
- Humidity measurement accuracy: ±2% RH
- Data refresh rate: every 5 seconds
- Communication: ZigBee 3.0
- Display: LCD, clear and energy-efficient
- Mobile application: eWeLink (6-month data history access)
- Smart home integration: Amazon Alexa, Google Home
- Power supply: 1x CR2450 battery (included)
- Battery life: up to 2 years
- Dimensions: 62.5 x 59.5 mm
Package Contents
- 1x Sonoff SNZB-02D - Temperature and Humidity Sensor
- 1x CR2450 Battery
- 1x Double-sided adhesive tape for mounting