🌡️ Stay ahead of the climate curve—because your comfort deserves smart precision.
The Xiaomi Mijia Bluetooth Temperature Humidity 2 is a compact, high-precision smart sensor that monitors temperature with 0.1°C accuracy and humidity within 1% RH. It connects via Bluetooth to the Mijia app, enabling automated climate control and real-time data tracking. Featuring a dedicated baby mode and a sleek design, it offers up to one year of battery life, making it an essential smart home device for health-conscious professionals.
| Manufacturer | xiaomi |
| Part number | 234234234_SML |
| Item Weight | 40 g |
| Product Dimensions | 0.43 x 0.43 x 0.13 cm; 40 g |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Item model number | 234234234_SML |
| Colour | White |
| Style | Contemporary |
| Shape | Square |
| Power source type | Electric |
| Voltage | 3 Volts |
| Item Package Quantity | 1 |
| Display style | Digital |
| Plug profile | Tabletop |
| Specification met | CE |
| Special Features | High Accuracy |
| Included components | Thermometer, wall sticker, instruction manual |
| Batteries included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Lithium |
| Battery life | 1 years |
H**O
Brilliant little devices!
These little Xiaomi devices are brilliant for the price. Have one in each bedroom now to keep on top of temp and humidity, working together with Hive and some smart plugs through Home assistant. But can be used just with the Mijia app.Seems fairly accurate when comparing to the Hive thermostat.Arrived nicely wrapped.
A**R
Easy to use, great connectivity
Can pick it up from two floors away, I have three of these now dotted about the place. All very accurate compared so some that I paid treble this price for. My go to sensor and one I recommend to anyone into home automation. Bluetooth connection has been reliable and solid. Very easy. You can also load custom firmware for these very easily.Go for the three for fifteen pounds pack on amazon. Absolute bargain;.
T**Y
Great little device is the app to track temp and humidity
Fantasize little device can link to an app and monitor history if humidity and temperatures . Battery last ages had for some time now use to track around my 3d printer make sure filament not exposed to to much moisture.
M**K
Would have been 5 stars but...
I bought 2 - both work really well and appear accurate. Paired with a ESP32 using ESP Home and now exposed to home assistant.I left both side by side and next to a Netatmo temperature gauge I have - the two Xiaomi read the same as each other and were just 0.2 degrees higher than Netatmo.But...only one had a battery in, so drop a star. For the quality and accuracy 5 starts thoughApart from that worth it.
C**J
Does what it says on the tin.
These cheap little thermometers can easily be updated with some custom firmware with a computer with bluetooth or any modern Android smartphone. Once this is done it allows them to boardcast its readings "in the clear" allowing very easy intergration into systems like Home Assistant.They are cheap enough that you can throw one in every room of your home and monitor, Small enough to be unintrusive (They also have a small double sided sticky pad in the box allowing you to stick them where you like), and look nice enough that they are not an eye sore when they are seen.
T**M
Small and easy to use
Thanks to the other folks pointing out the custom firmware on GitHub - works great.Display is a bit dark but otherwise good.
R**I
Works well with Home Assistant
Works well with Home Assistant with the "ATC_MiThermometer" unofficial firmware and the "ble_monitor" custom component. Accuracy is within 0.2C of a Shelly temperature sensor and within 10% for humidity. I got 2 units and both agree with each other as well.
A**R
Really really tiny
Works ok
Trustpilot
3 weeks ago
3 days ago
