Xiaomi has listed the Smart Temperature and Humidity Monitor 3 Mini on its global website, hinting at an upcoming launch outside China. The device is a smaller version of the existing Monitor 3, with updated features and a more compact build.

It measures 53 × 45.3 × 13mm and weighs 30g. The screen is 2.1 inches with a 5.1mm thin bezel, offering a larger and clearer display compared to the older Mi Monitor 2. The monitor uses a high-precision sensor to detect changes in temperature (as small as 0.1°C) and humidity (1% RH). It refreshes data every 6 seconds and displays both values at the same time. Xiaomi recommends keeping indoor temperature between 19–27°C and humidity between 20–85% RH for best comfort.
It runs on a CR2450 button cell battery. In standard mode, battery life is up to 2 years. In save battery mode, it can last up to 3 years. Save battery mode can be enabled through the Xiaomi Home app (version 10.0 or later).

Users can connect the monitor to the Xiaomi Home app via a Bluetooth Mesh gateway (sold separately). Once connected, it can trigger smart devices like fans or humidifiers based on preset temperature and humidity limits.
The device stores data locally for 3 months and in the cloud for 6 months. In standard mode, it sends data to the gateway every 1 to 5 minutes. In save battery mode, updates happen every 3 to 13 minutes.
The monitor can be placed on a surface using the included stand or mounted on a wall using double-sided adhesive. It also shows comfort levels through small facial icons on the screen. It is made of ABS plastic, supports Bluetooth Low Energy 5.0, and works in the 0°C to 60°C temperature range and 0% RH to 99% RH humidity range.
Pricing & availability
There’s no confirmed global release date yet. In Germany, it is priced at €14.99.
(via: Notebookcheck)
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