🌡️ Stay cool, stay connected — your smart climate guardian awaits!
The SONOFF SNZB-02D is a battery-powered Zigbee temperature and humidity sensor featuring a Swiss-made hygrometer for high accuracy (±0.2°C/±2%RH). It offers real-time monitoring with a large LCD display, remote access up to 120m/400ft via SONOFF ZigBee Bridge, instant app alerts, and up to six months of free cloud data storage with export capabilities. Compatible with Alexa and Google Home, it’s designed for seamless smart home integration.
| Manufacturer | SONOFF |
| Part number | SNZB-02D |
| Item Weight | 60 g |
| Product Dimensions | 5.94 x 5.94 x 0.72 cm; 60 g |
| Batteries | 1 Lithium Metal batteries required. |
| Item model number | SNZB-02D |
| Size | One size |
| Colour | Black |
| Style | SNZB-02D |
| Power source type | Battery Powered |
| Voltage | 3 Volts |
| Item Package Quantity | 1 |
| Measurement Accuracy | ±0.2℃ |
| Plug profile | Tabletop |
| Specification met | CE, UKCA |
| Included components | 1 pack |
| Batteries included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Metal |
| tech_spec_battery_description_toys | CR2450 3V Lithium Coin Cell Battery |
J**S
Great zigbee connection with Home Assistant
Connected to Home Assistant very easily, and provides temperature and humidity readings.The temperature updates on each change of 0.2C and the humidity on each %The display on it is clear enough, but I'm just using it to track the temperature over time.
F**G
Used in bearded dragon vivarium
I am using this at the hot end of my bearded dragon's vivarium and it is proving very handy for keeping an eye on the temperature and humidity. I have also set up an alert in case the heat bulb fails when I am out. I am getting another for the cool end so that I can monitor the temperature gradient. Very easy to set up with the Sonoff hub via the eWelink app.
J**C
Works with Home Assistant and ZHA. All working well after 1 year.
Easy to set up automations based on temperature.
D**X
Great addition to a smart home setup.
Great item, I bought two to replace the dumb sensors I had as I wanted to integrate them into my Smart Home/Home Assistant setup. Can't fault them at all. Highly recommended.
G**S
Too difficult to get to work, it's good for just showing the temperature in celsius, nothing else.
Good temperature/humidity monitor, except impossible to customise, no bluetooth. It hints at a downloadable app to adjust, but that was just too complicated and I couldn't get it to work - neither in Android nor iPad. Manual impossible to read without a magnifying glass. The manual online is the same one, very little information and in the usual 10+ different languages, not separated. I had hoped it might have a temperature tracker, but doesn't seem to do anything except show the temperature in Celsius only. Uses uncommon CR2450 battery, needs a screwdriver to change. I get the feeling from all the passwords & data it asks me to enter, it's probably spying on me for when we get invaded by China. Very disappointed, weighing whether to return it or not.
D**O
Failed to stay connected
Very poor item kept disconnecting from the ZigBee hub
I**N
Okay, but not sure it's that accurate
Although this worked, I found that it's readings were noticeable different to some of the other units I compared it to.
P**R
Easy to install/use. Poor accuracy.
Eaay to install/use and setup for use with Home Assistant.But the humidity accuracy was very very poor. e.g. over 60% in a room where multiple other calibrated devices registered 22-22%.
Trustpilot
1 day ago
2 weeks ago
