Xiaomi Smart Temperature and Humidity Monitor 3 Mini QBH4312GL Wireless Indoor Sensor

The Xiaomi Smart Temperature and Humidity Monitor 3 Mini is a compact, wireless indoor sensor designed to provide precise, real-time climate data. This freestanding device features a high-precision digital sensor that detects subtle changes in ambient conditions, displaying temperature and humidity levels on a clear LCD screen. Powered by a long-lasting CR2450 battery, it integrates seamlessly into smart home ecosystems to help maintain an optimal living environment.

Advantages

This device offers exceptional accuracy, detecting temperature shifts as small as 0.1°C and humidity variations of 1%RH. Its compact design includes a high screen-to-body ratio for easy readability, while the ultra-low power consumption ensures extended battery life. The monitor provides intuitive comfort level reminders through facial expressions and supports historical data tracking via the Xiaomi Home app, allowing users to monitor environmental trends over time.

Suitable for

• Monitoring indoor climate in bedrooms, living rooms, or offices
• Automating home appliances like humidifiers and fans via Bluetooth Mesh gateways
• Tracking environmental changes for health management
• Portable use in different rooms or while traveling

This monitor may not be suitable for outdoor environments or areas with extreme weather conditions, as it is designed specifically for indoor use. It is also not intended for industrial-grade climate control or high-precision laboratory measurements where specialized equipment is required.

Key specifications

• Measurement range: 0 - 60 °C for temperature and 0 - 99% for humidity
• Connectivity: Bluetooth
• Power source: CR2450 battery (3 V)
• Dimensions: 53 mm x 45.3 mm x 13 mm
• Display: LCD screen with comfort level indicators
• Installation: Freestanding or wall-mounted with adhesive

To use the device, insert the CR2450 battery into the compartment. Place the monitor on a flat surface using the integrated stand or attach it to a wall using the provided adhesive. For advanced features, download the Xiaomi Home app and pair the device with a compatible Bluetooth Mesh gateway. Once connected, you can view real-time data, access historical graphs, and set up automation triggers for other smart home devices.

What to consider before purchase

• Ensure you have a compatible Bluetooth Mesh gateway if you intend to use remote monitoring or automation features
• Check that the intended installation area is indoors and within the operating temperature range
• Verify that the device is within range of your Bluetooth gateway for stable data synchronization

For the most accurate readings, place the monitor away from direct sunlight, heat sources, or areas with direct airflow from air conditioners or heaters.