# SONOFF SNZB-02B Zigbee Temperature and Humidity Sensor

# SONOFF Zigbee Temperature and Humidity Sensor Smart Home Airguard TH Lite SNZB-02B Ewelink APP Control Work With Alexa Google

Keeping track of indoor climate conditions in tight spaces like humidors, instrument cases, and storage cabinets can be surprisingly difficult, often leading to hidden moisture damage or mold growth before you even notice. The SONOFF Zigbee Temperature and Humidity Sensor Smart Home Airguard TH Lite SNZB-02B Ewelink APP Control Work With Alexa Google provides an advanced, real-time solution for monitoring your environment with precision accuracy.

Equipped with a high-grade Swiss Sensirion sensor, this compact device delivers rapid updates every five seconds. It goes beyond basic tracking by calculating Dew Point and Vapor Pressure Deficit (VPD) to help prevent mold and protect sensitive items.

-   **High-Accuracy Sensing:** Measures temperature with ±0.2°C and humidity with ±2%RH accuracy for reliable real-time tracking.
-   **Dew Point & VPD Analysis:** Detects condensation risks early to protect walls, furniture, and delicate items from mold.
-   **Slim Compact Design:** Measures just 27.8mm wide and 20mm thick, making it ideal for tight spaces like guitar cases and wine racks.
-   **Long Battery Life:** Powered by two standard AAA batteries for up to 2 years of tool-free, maintenance-free operation.
-   **App & Voice Integration:** View up to 6 months of historical data trends via the eWeLink app and control your smart home with Alexa or Google Assistant.

**Ideal Use Cases**

Place this smart sensor in guitar cases, cigar humidors, jewelry cabinets, or green spaces to maintain ideal preservation conditions. Set up automated scenes in your home to trigger dehumidifiers or smart radiator valves the moment thresholds are crossed.

**Frequently Asked Questions**

**Does this sensor require a hub?** Yes, a Zigbee 3.0 gateway is required for proper connectivity and app integration.

**How long does the historical data last?** The eWeLink app stores up to 6 months of cloud history so you can analyze long-term environmental trends.

Upgrade your smart home climate monitoring today with the SONOFF Airguard TH Lite sensor and enjoy total peace of mind.

## Details

- **Price:** 32.45 EUR - 50.21 EUR
- **Vendor:** Tidesmit
- **Type:** Smart Sensor
- **Tags:** smart door handles

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| WHITE / 4packs | 50.21 EUR | In stock |
| WHITE / 1pack | 32.45 EUR | In stock |

## Images

- White Zigbee temperature and humidity sensor, wall-mounted with orange strap loop
- White Zigbee temperature and humidity sensor showing internal battery bay
- White Zigbee temperature and humidity sensor icon for monitoring dew point
- White Zigbee temperature and humidity sensor mounted indoors for voice control
- White Zigbee temperature and humidity sensor with orange strap and dimension diagram
- White Zigbee temperature and humidity sensor package with two AAA batteries and papers
- White Zigbee temperature and humidity sensor on wooden railing with orange strap
- White Zigbee temperature and humidity sensor held in hand, compact design
- White Zigbee temperature and humidity sensor with precision measurement graphic
- White Zigbee temperature and humidity sensor in hand with size measurements and mounting

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> Source: [Tidesmit](https://tidesmit.com/products/sonoff-snzb-02b-zigbee-temperature-and-humidity-sensor)
> Updated: 2026-08-26