Xiaomi: New smart sensor for indoor climate costs little and comes with display

Xiaomi is preparing a crowdfunding campaign for the Temperature and Humidity Sensor 3 Mini, which will only be available in China for the time being, but it is conceivable that the sensor will be available globally as a direct import or officially in the near future.

Measuring just 53 x 45.3 x 13 millimeters, the Xiaomi Mijia Smart Temperature and Humidity Sensor 3 Mini can - as the name suggests - measure both temperature and humidity. The accuracy of the temperature measurement or deviation is said to be 0.1 °C, while the accuracy of the relative humidity measurement is said to be 1 percentage point. 

It is not only possible to read the values on the display, but also on other devices via Bluetooth Mesh, for which a corresponding gateway is required. In principle, it is thus conceivable to integrate the measured values into smart home systems that automatically control the cooling or heating according to preset values.

Xiaomi does not install a rechargeable battery, but a CR2450 coin cell, which is expected to last up to three years. As part of the crowdfunding campaign on Xiaomi YouPin, supporters can purchase a unit for the equivalent of around $4: it is unlikely that the device will have a similar price tag if launched globally.