SONOFF Zigbee Temperature Humidity Sensor - SNZB-02D
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Product Information
Full details
The SONOFF SNZB-02D is an ideal solution for homeowners and automation enthusiasts looking to monitor indoor climate conditions with high precision. This smart sensor features a Swiss-made hygrometer for reliable accuracy and a built-in LCD for immediate data viewing, though it does require a compatible Zigbee 3.0 gateway to function within a smart home network.
All features
| Model Part Number | SNZB-02D |
|---|---|
| Brand | Sonoff |
Extended Product Information
FAQs
Does this sensor work without a hub?
No, the SNZB-02D requires a Zigbee 3.0 compatible gateway to connect to your network and provide remote data.
Can I use this sensor outdoors?
No, the device is designed specifically for indoor use and is not weather-resistant.
How long does the battery typically last?
With standard usage, the CR2450 battery is designed to last up to two years.
Can I switch between Celsius and Fahrenheit?
Yes, you can toggle between temperature units directly in the device settings within the app.
Is the historical data saved locally?
The historical data is saved to the cloud, allowing you to access it remotely and export the logs as files.
Troubleshooting
Device is not pairing with the hub
Ensure the device is within range of the gateway during pairing and check that the hub is in 'pairing mode' for Zigbee devices.
Data in the app is not updating
Check your Zigbee signal strength. If the distance is too great, add a mains-powered Zigbee repeater to strengthen the network mesh.
LCD screen is blank or faint
The battery level is likely low. Replace the CR2450 battery with a new 3V cell.
Pros and Cons
Pros
- High measurement accuracy with Swiss-made sensor technology
- Large, easy-to-read LCD display
- Integration with major platforms including Home Assistant
- Long battery life of up to 2 years
- Robust data logging and export capabilities
Cons
- Requires a separate Zigbee 3.0 hub for operation
- Range can be significantly reduced by walls and obstructions
- Not intended for outdoor or harsh environment use
Setup, Compatibility & Care
To set up the SNZB-02D, ensure you have a powered Zigbee 3.0 gateway ready. Open your smart home app, select the option to add a new device, and press the pairing button on the sensor until the indicator flashes. This device is compatible with most standard Zigbee 3.0 hubs and integrates seamlessly with Home Assistant via the eWeLink add-on. For maintenance, keep the device in a dry, indoor area within the -9°C to 60°C operating range. Since it is powered by a CR2450 battery, ensure you have a spare on hand, as the device will notify you of low power status on the LCD screen before it dies.