# SONOFF SNZB-02DR2

*SONOFF / SNZB-02DR2*

> The SNZB-02DR2 (AirGuard TH) needs a Zigbee 3.0 hub or coordinator. Its 3.6 inch LCD shows temperature and humidity, and can also show the reading of another SONOFF sensor on the same gateway. It suits HomeKit users through an integration (a Matter bridge). Google Home, Alexa, SmartThings and Home Assistant users reach it through an integration (Zigbee).

- Canonical page: https://smarthomecanon.com/devices/sonoff-snzb-02dr2
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [SONOFF](https://smarthomecanon.com/brands/sonoff) |
| Category | Temperature and humidity sensor |
| Model numbers | SNZB-02DR2 |
| Status | Current[^1] |
| Type | Temperature and humidity[^1] |
| Power | unknown |
| Radio | Zigbee (IEEE 802.15.4)[^1] |
| In Zigbee2MQTT docs | Yes[^2] |

## Integration paths

**How the SONOFF SNZB-02DR2 connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter via Bridge](https://smarthomecanon.com/protocols/matter-bridged) | A SONOFF Matter bridge, such as the Zigbee Bridge Ultra[^3] | unknown | unknown |
| [Zigbee](https://smarthomecanon.com/protocols/zigbee) | A Zigbee 3.0 hub or coordinator[^1] | unknown | unknown |

**Platform support for the SONOFF SNZB-02DR2**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter via Bridge | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Via integration[^3] |  |
| Zigbee | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Via integration[^1] |  |
| Zigbee | [Google Home](https://smarthomecanon.com/platforms/google-home) | Via integration[^1] |  |
| Zigbee | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^1] |  |
| Zigbee | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^1] | SONOFF Zigbee dongle (ZHA needs a script) |
| Zigbee | [Homey](https://smarthomecanon.com/platforms/homey) | withheld | se.styrahem.sonoff.zigbee |

## Related pages

- [SONOFF sensors and buttons](https://smarthomecanon.com/lines/sonoff-zigbee-sensors) (line)
- [SONOFF](https://smarthomecanon.com/brands/sonoff) (brand)
- [Matter through a bridge](https://smarthomecanon.com/protocols/matter-bridged) (protocol)
- [Zigbee](https://smarthomecanon.com/protocols/zigbee) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: SONOFF store: SONOFF AirGuard TH 3.6'' LCD Zigbee Temperature And Humidity Sensor | SNZB-02DR2. https://sonoff.tech/products/sonoff-airguard-th-3-6-lcd-zigbee-temperature-and-humidity-sensor-snzb-02dr2 (manufacturer, checked 2026-10-10)
[^2]: Zigbee2MQTT: SONOFF SNZB-02DR2. https://www.zigbee2mqtt.io/devices/SNZB-02DR2.html (platform documentation, checked 2026-10-10)
[^3]: SONOFF Zigbee Bridge Ultra. https://sonoff.tech/products/sonoff-zigbee-bridge-ultra (manufacturer, checked 2026-10-13)