1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Xiaomi Temperature and Humidity Monitor Pro. This device accurately measures and displays ambient temperature and humidity, featuring an E-Ink display for clear readability and Bluetooth connectivity for smart integration.
2. Product Overview
The Xiaomi Temperature and Humidity Monitor Pro features a clear E-Ink display that shows the current time, temperature, and humidity levels. Its compact design allows for versatile placement.

This image shows the front of the monitor, clearly displaying '12:30' as the time, '36%' as humidity, and '23.5°C' as temperature, along with a comfort indicator.

An angled perspective of the monitor, highlighting its E-Ink screen with '19:43' as the time, '36%' humidity, and '23.9°C' temperature, demonstrating its wide viewing angles.
3. Setup
3.1 Battery Installation
The device requires one CR2032 battery (not included). Open the battery compartment on the back of the device, insert the battery with the positive (+) side facing up, and close the compartment securely.
3.2 App Installation
Download the Xiaomi Home application from your smartphone's app store. This app is essential for initial setup, time synchronization, and accessing advanced features.
3.3 Bluetooth Pairing
Once the app is installed and the device is powered on, open the Xiaomi Home app. Follow the in-app instructions to add a new device and pair it via Bluetooth. Ensure your phone's Bluetooth is enabled.
3.4 Time Synchronization
The device's time will automatically synchronize with your smartphone via the Xiaomi Home app during the pairing process. This ensures accurate time display, including automatic adjustments for daylight saving time.
3.5 Placement Options
The monitor can be placed on a flat surface using its integrated stand, attached to a metallic surface with its magnetic back, or mounted on a wall using the provided adhesive strip.
4. Operating Instructions
4.1 Reading the Display
The E-Ink display shows the current time prominently, with humidity percentage and temperature in Celsius below. A small icon may indicate comfort levels.
4.2 Viewing Data via App
Open the Xiaomi Home app to view historical temperature and humidity data, set alerts, and manage device settings.
5. Maintenance
5.1 Battery Replacement
When the display dims or the device stops responding, replace the CR2032 battery. Follow the battery installation steps outlined in Section 3.1.
5.2 Cleaning
Wipe the device with a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as they may damage the E-Ink display or internal components.
5.3 Environmental Considerations
Avoid placing the monitor in direct sunlight, near heat sources, or in areas with extreme temperature fluctuations or high humidity, as this can affect accuracy and device longevity.
6. Troubleshooting
6.1 Display is Blank
- Check battery installation and ensure the battery has sufficient charge.
- Replace the CR2032 battery if necessary.
6.2 Incorrect Readings
- Ensure the device is placed in a stable environment away from direct heat, cold, or moisture sources.
- Allow a few minutes for readings to stabilize after placement or battery change.
6.3 Cannot Connect via Bluetooth
- Verify that Bluetooth is enabled on your smartphone and the Xiaomi Home app has Bluetooth permissions.
- Ensure the device is within range of your phone.
- Try restarting both the device (by reinserting the battery) and the app.
6.4 Time is Incorrect
- Ensure the device is successfully paired with the Xiaomi Home app. The time synchronizes automatically upon connection.
7. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 11 x 5.5 x 1.1 cm |
| Item Weight | 57 grams |
| Material | Plastic |
| Power Source | Battery-powered |
| Battery Type | 1 x CR2032 (required) |
| Model Number | 35911 |
| Part Number | LYWSD02MMC |
| Color | White |
| Brand | XIAOMI |
8. Warranty and Support
For warranty information and technical support, please refer to the official Xiaomi website or contact your local Xiaomi customer service center. Keep your purchase receipt for warranty claims.

