SONOFF SNZB-02WD Zigbee Temperature & Humidity Sensor
The SONOFF SNZB-02WD is a Zigbee 3.0 smart temperature and humidity sensor designed for reliable environmental monitoring in areas where a standard indoor sensor may not be suitable.
Its IP65-rated housing helps protect the sensor in humid, misty and splash-prone environments, while the built-in waterproof breathable membrane allows it to continue measuring the surrounding temperature and humidity.
A clear 2.2-inch LCD display provides an instant view of current conditions without needing to open an app.
Monitor temperature and humidity
The SNZB-02WD continuously monitors both temperature and relative humidity, making it useful for a wide range of locations including:
- Bathrooms
- Kitchens
- Utility rooms
- Greenhouses
- Conservatories
- Garages
- Plant-growing areas
- Other humid or moisture-prone locations
The sensor offers temperature accuracy of approximately ±0.2°C and humidity accuracy of ±2% RH under normal operating conditions.
Clear 2.2-inch display
Current temperature and humidity readings can be checked directly on the sensor’s LCD screen.
This makes it useful both as a standalone room display and as part of a wider Zigbee automation system.
Build useful automations
When connected to a compatible Zigbee hub and smart-home platform, temperature and humidity readings can be used as automation triggers.
Example automations include:
- Switch a compatible fan on when the temperature rises above a chosen level
- Activate ventilation when humidity becomes too high
- Switch a dehumidifier on through a compatible smart plug
- Receive a notification when temperature moves outside a selected range
- Receive a humidity warning in bathrooms or utility areas
- Combine environmental monitoring with heating or cooling routines
When used with Veyaxium Core, the SNZB-02WD becomes another environmental sensor that can be incorporated into your existing Zigbee automation system.
Historical data
Through the eWeLink app, compatible setups can provide access to historical temperature and humidity information for up to 180 days, allowing conditions to be reviewed over time.
Historical data can also be exported where supported
IP65-rated design
The SNZB-02WD has an IP65 protection rating, making it suitable for damp and splash-prone environments.
It should not be submerged in water or exposed to high-pressure water jets. SONOFF also advises against placing it where it will be directly exposed to rain
Zigbee 3.0 connectivity
The sensor communicates using Zigbee 3.0, helping it operate as part of a low-power smart-home sensor network.
It can be used with compatible SONOFF Zigbee hubs and other supported Zigbee ecosystems.
Flexible installation
The sensor includes several mounting possibilities, including its magnetic rear and hanging point, allowing it to be positioned in different environments.
Specifications
Brand: SONOFF
Model: SNZB-02WD
Veyaxium SKU: VX-SNF-TMP-SNZB02WD
Product type: Temperature & humidity sensor
Wireless protocol: Zigbee 3.0
Display: 2.2-inch LCD
IP rating: IP65
Temperature operating range: -20°C to 60°C
Humidity operating range: 0–100% RH
Temperature accuracy: ±0.2°C
Humidity accuracy: ±2% RH
Battery: CR2477
Input: 3V DC
Housing material: PC + ABS
Colour: White SONOFF
Works with Veyaxium Core
The SNZB-02WD is a natural expansion device for Veyaxium Core, adding an additional temperature and humidity monitoring point to the existing Zigbee system.
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