Xiaomi Smart Temperature and Humidity Monitor 3 Mini

Smart temperature and humidity monitoring for everyday comfort

Compact design
Extra-long battery life
High precision sensor
Smart connection
Upgrade overview
Mi Temperature and Humidity Monitor 2
Xiaomi Smart Temperature and Humidity Monitor 3 Mini
Product Dimensions
43 × 43 × 12.5mm
53 × 45.3 × 13mm
Screen Size
Approx. 1.5 inches
Approx. 2.1 inches
Bezel Width
7.5mm
5.1mm
Battery Type
CR2032
CR2450
Function Buttons
N/A
Available
Battery Life
1 year
3 years*
*Enable save battery mode on the plugin for up to 3 years of battery life. In standard mode, the battery lasts up to 2 years.
Compact and powerful
The Xiaomi Smart Temperature and Humidity Monitor 3 Mini features a compact design with a 5.1mm thin bezel and a 42.8 × 35.1mm LCD screen. The high screen-to-body ratio provides a larger display area, making it easier to view temperature and humidity levels for a more intuitive and comfortable experience.
*Screen size in comparison to the Mi Temperature and Humidity Monitor 2.
High-precision sensor accurately detects changes in temperature and humidity
The built-in high-precision digital sensor quickly and accurately detects even slight changes in temperature and humidity. The display shows temperature shifts as small as 0.1°C and humidity variations of 1%RH, helping you make timely adjustments to maintain a healthy environment for your family.
*Image for reference only.
Displays temperature and humidity simultaneously for better family health management
The dual temperature and humidity display updates every 6 seconds, detecting changes in real time to provide attentive care for you and your family.
19–27
Ideal room temperature
20–85%
RH
Ideal indoor humidity
Ultra-low power consumption and long-lasting battery life
The Xiaomi Smart Temperature and Humidity Monitor 3 Mini is powered by a CR2450 button cell boasting extremely low power consumption to provide long-lasting protection for your family.
2
years
Standard mode
3
years
Save battery mode*
*Save battery mode can extend battery life by approximately 50%, though it may reduce the speed of automated temperature and humidity updates. The Xiaomi Home app version 10.0 or later is required to enable this feature. Standby time refers to periods when the monitor is not connected to the app. Actual performance may vary depending on environmental conditions. This information is for reference only. Once save battery mode is activated, an icon will appear in the top right corner of the display.
*Image is for reference only.
Pair with a Bluetooth Mesh gateway to unlock smarter healthy living
Connect to the Xiaomi Home app to experience a smarter, healthier lifestyle.
Automatically turns on the tower fan when the weather is hot
Configure preset temperatures in the Xiaomi Home app to turn on and off the tower fan automatically.
Automatically turns on the humidifier when the air is dry
Configure preset humidities in the Xiaomi Home app to turn on and off the humidifier automatically.
*Remote viewing and smart connectivity features require devices that support Bluetooth Mesh gateway. For optimal performance, it is recommended to pair with a Bluetooth Mesh gateway. The Bluetooth Mesh gateway and other connected devices are sold separately.
*The smart interconnection feature of this product requires compatibility with devices that support the Xiaomi Home app. Please refer to the relevant product details for specific compatible devices. These devices are sold separately, and interconnection performance may vary depending on device model and network conditions.
Monitor temperature and humidity fluctuations with historical data tracking
The Xiaomi Smart Temperature and Humidity Monitor 3 Mini stores temperature and humidity data. You can synchronise the data to the cloud via the Xiaomi Home app and a Bluetooth Mesh gateway. View temperature and humidity graphs in the app to track changes and protect your family's health.
*Once connected to the Xiaomi Home app, the device can store temperature and humidity data for up to 3 months, while cloud storage retains it for up to 6 months. For optimal use, pair with a Bluetooth Mesh gateway. Bluetooth Mesh gateway sold separately.
*In standard mode, temperature and humidity data are sent to the Bluetooth Mesh gateway every 1 to 5 minutes. In save battery mode, data is updated every 3 to 13 minutes. Data upload to the cloud by different Bluetooth Mesh gateways typically occurs every 5 to 10 minutes.
*The device stores one data record per hour. When connected to a smartphone, it syncs all local data to the cloud. When paired with a Bluetooth Mesh gateway, data is generated every 5 to 10 minutes. Historical temperature and humidity data in the Xiaomi Home app is a combination of cloud-synced data from both the device and the Bluetooth gateway.
Stand or wall mount—place it your way
The Xiaomi Smart Temperature and Humidity Monitor 3 Mini is lightweight and portable, with a stand and double-sided wall adhesive for easy mounting or freestanding use. Slip it into your pocket or bag to monitor temperature and humidity anytime, anywhere—at home, in the office, or while traveling. It's designed to ensure your comfort wherever you are.
Bedroom
Living room
Study
Office
Cute faces
Comfort level reminders
Cute facial expressions update you on the comfort level of your surroundings, with temperature and humidity clearly displayed at all times.
Temperature and humidity
High comfort level
Temperature and humidity
Low comfort level
Thoughtful design
Attention to detail
Round vents
Improved sensing speed for more accurate measurements
ABS material
Safe, eco-friendly, durable and odour-free
Minimalist design
Stylish and versatile, blending beauty with practicality
*This product is not waterproof. Vents cannot be immersed in water.
*Press firmly for 10 seconds when attaching the stand or hanging the product to ensure secure adhesion.
*Once the product has been mounted on the wall, use care when removing it to avoid damaging the product or the wall surface.
*This product measures temperatures from 0°C to 60°C and is not suitable for environments outside this range.
*This product measures a humidity range between 0% and 99% RH. Keep it away from extreme humidity.
*This product is intended as a reference for healthy living data and should not be used as a measuring instrument.
*Using a CR2450 button cell battery, the standby time refers to the duration when the monitor is not connected to the app. Actual performance may vary depending on environmental factors. This is for reference only.
*Please replace with the specified battery model and dispose of used batteries in accordance with relevant national regulations.
*All test data above comes from the manufacture. Actual performance may vary depending on environmental factors.
*The product images, models, data, functions, performance, specifications, parameters, user interfaces and other product information on this page are for reference only. Xiaomi may improve the above content. For specific information and performance, please refer to the actual product.
*Temperature and humidity readings may vary across multiple devices due to environmental factors and product tolerances. Data displayed in the app is for reference only and may differ slightly from actual conditions.