Key Takeaways
1. Compact Design: The Mijia Smart Temperature and Humidity Sensor 3 Mini measures just 43 × 43 × 12.5mm, making it easy to place anywhere.
2. Improved Display: Features a 2.1-inch LCD screen with a thinner bezel for better visibility of temperature and humidity readings.
3. Smart Connectivity: Connects via Bluetooth Mesh to automate home devices using the Mijia app and supports voice commands with Xiao Ai.
4. Long Battery Life: Powered by a CR2450 button battery, it lasts up to three years in long-lasting mode, with a visual comfort indicator using emoji symbols.
5. Data Storage: Offers three months of local data storage and six months of cloud storage for monitoring environmental changes over time.
Xiaomi has launched an innovative device aimed at smart home fans: the Mijia Smart Temperature and Humidity Sensor 3 Mini. This small climate monitor has kicked off a crowdfunding campaign on Xiaomi Mall and Xiaomi Youpin, beginning February 19. While the recommended retail price is 34.9 yuan (~$5), early supporters can snag it for a special price of 29.9 yuan (~$4) during the campaign.
Key Features of the Mijia Smart Sensor
The Mijia 3 Mini measures just 43 × 43 × 12.5mm, making it compact and easy to place anywhere. In comparison to the earlier Mijia Bluetooth Temperature and Humidity Sensor 2, this version boasts a larger 2.1-inch LCD screen with a thinner 5.1mm bezel. The improved design provides more screen area for better visibility, allowing for easier temperature and humidity readings at a glance.
The sensor provides an accuracy of 0.1°C for temperature and 1%RH precision for humidity, refreshing data every six seconds. Xiaomi claims this level of accuracy helps users maintain a pleasant indoor environment, ideally kept between 19-27°C and 20%-85%RH.
Connectivity and Automation
Beyond just monitoring, the Mijia 3 Mini connects to Xiaomi’s smart home network through Bluetooth Mesh. It can link with a Mijia Bluetooth gateway to automate home gadgets via the Mijia app. Users can establish triggers for their air conditioners or humidifiers to turn on automatically based on changes in temperature.
It also allows for voice commands through Xiao Ai, Xiaomi’s smart assistant, giving hands-free access to up-to-date temperature and humidity information.
Impressive Battery Life and User-Friendly Features
Battery life is another strong point. The sensor operates on a CR2450 button battery, lasting up to three years in long-lasting mode or two years in standard mode. The longer-lasting setting boosts battery life by around 50%, though it may slow down automation response times a bit.
Xiaomi has also added a visual comfort indicator using emoji symbols. A smiley indicates optimal conditions, while a frowning face warns of discomfort.
For those interested in monitoring environmental changes over time, the sensor supports three months of local data storage and six months of cloud storage through the Mijia app. This feature simplifies trend analysis and enables users to adjust home conditions accordingly.
The Mijia 3 Mini is designed to blend into any environment. It comes with double-sided adhesive stickers for simple wall mounting, making it perfect for bedrooms, living rooms, offices, or bathrooms, as long as it stays dry. Its compact size also makes it an ideal travel buddy for checking conditions in hotel rooms.
Constructed from high-quality ABS materials, the sensor is sturdy and resistant to wear. However, it is not waterproof, so users should steer clear of excessive moisture or water submersion.
