1. Introduction
The Xiaomi Motion Sensor 2S is an advanced intelligent device designed to enhance your smart home experience. It combines high-sensitivity motion detection with ambient luminance sensing, allowing for sophisticated automation scenarios. With its compact design and Bluetooth Low Energy chip, it offers a 3-year long battery life and versatile installation options.
Image: Xiaomi Motion Sensor 2S, indicating compatibility with Xiaomi Home.
Image: Key features of the Xiaomi Motion Sensor 2S.
2. Specifications
| Feature | Detail |
|---|---|
| Product Name | Xiaomi Motion Sensor 2S |
| Model | XMPIR02SGXS |
| Dimensions | φ32.5 x 69.5mm |
| Detection Angle | Approx. 130° |
| Detection Range | Approx. 7m |
| Operating Temperature | -10°C to 45°C |
| Operating Humidity | 0–95% RH (no condensation) |
| Wireless Connectivity | Bluetooth 5.0 (Bluetooth-Compatible) |
| Battery Type | CR2450 (Not included) |
| Power Source | Other (Battery powered) |
| Compatibility | Android (via Xiaomi Home app) |
| State of Assembly | Ready-to-Go |
| Control Channels | 2 CHANNELS |
| Origin | Mainland China |
Note: The CR2450 battery is not included in the product package and must be purchased separately.
Image: Comparison of Xiaomi Motion Sensor 2S with previous model, highlighting upgrades.
3. Setup and Installation
3.1. Device Pairing (Xiaomi Home App)
The Xiaomi Motion Sensor 2S connects effortlessly via the Xiaomi Home app. Ensure you have a Bluetooth® gateway within 10 meters for optimal performance and smart home integration.
- Step 1: Start the Xiaomi Home app on your Android device.
- Step 2: Tap the "+" icon in the top right corner of the app's home page to enter the add device page.
- Step 3: Select "Add a device" and choose "Xiaomi Motion Sensor 2S" from the list. Follow the on-screen instructions to complete the pairing process.
- Alternative: If the device cannot be found, you can scan the QR code provided in the original user manual or search for the product name to add the device.
Note: Due to continuous app updates, the exact steps may vary. Always refer to the latest instructions within the Xiaomi Home app.
Image: Visual guide for adding the device via the Xiaomi Home app.
3.2. Physical Installation
The Xiaomi Motion Sensor 2S features a self-built base bracket, allowing for versatile placement and adjustment. Its compact size makes it suitable for various scenarios.
- Placement: The sensor can be placed on any flat surface.
- Wall Mounting: Use the adhesive backing to paste the sensor onto a wall.
- Inversion: It can be inverted and mounted under shelves or cabinets.
The sensor can be flexibly adjusted up to 90° vertically and 360° horizontally to achieve the desired detection area.
Image: Examples of versatile installation positions for the sensor.
Image: Sensor mounted on a wall, demonstrating flexible positioning.
4. Operating the Sensor
4.1. Motion Detection
The sensor offers a wide detection area, extending up to 7 meters with a 130° angle. It features a new high-sensitivity mode to detect even subtle human movements, improving detection accuracy.
- Detection Range: Up to 7m for general motion, with enhanced sensitivity for micro-movements.
- Alerts: Once monitoring is activated in the Xiaomi Home app, detection of a person entering the monitored area can trigger an alert notification.
- High Sensitivity Mode: Activate this mode in the app to detect actions like waving, which helps reduce the frequency of sensor misjudgments.
Image: Diagram illustrating the wide detection area and range.
Image: Sensor detecting subtle movements, such as a person washing hands.
4.2. Luminance Detection
The sensor can precisely measure ambient illuminance values (up to 1000 lux), allowing for seamless coordination with your lighting and other smart devices.
- Automatic Lighting: Configure automation scenarios to automatically turn on lights in low-light conditions.
- Adaptive Scenarios: Adapt to a wider range of automation scenarios tailored to your specific lighting needs.
Note: This automation function requires a compatible Bluetooth gateway and smart light support.
Image: Sensor demonstrating illuminance detection for smart lighting control.
4.3. Smart Home Linkage
The Xiaomi Motion Sensor 2S can be synchronized with other smart devices to configure automated scenarios, creating an ideal smart lifestyle. Devices that support Bluetooth® gateway functionality are required for linkage.
- Presence Detection: Trigger lights to turn on when people enter a detection area and off when they leave.
- Appliance Control: Automatically turn off home appliances when no motion is detected for a period.
- Security: Implement intrusion detection and receive alert notifications.
Compatible Bluetooth gateway devices include Mi Smart Home Hub, Xiaomi Smart Home Hub 2, Mi Bedside Lamp, Mi Smart LED Ceiling Light, Mi 360° Home Security Camera 2K Pro, or Xiaomi Smart Camera C500 Pro.
Image: Examples of smart home automation scenarios using the motion sensor.
5. Maintenance
5.1. Battery Replacement
The Xiaomi Motion Sensor 2S is equipped with a Bluetooth Low Energy chip, optimizing power consumption for a 3-year long battery life. The battery model required is CR2450.
- Battery Status: The Xiaomi Home app allows you to view the battery status of your sensor.
- Low Battery Alert: When the battery is in a low power state, the app will remind you to replace it.
- Replacement: To replace the battery, carefully open the sensor casing, remove the old CR2450 battery, and insert a new one, ensuring correct polarity.
The 3-year battery life is an estimate based on typical usage (1600 human movement triggers and 300 luminance messages reported daily at 25°C).
Image: Visual representation of the sensor's long battery life.
5.2. Cleaning
To maintain optimal performance, periodically clean the sensor's exterior with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
6. Troubleshooting
- Device Not Found During Pairing:
If the Xiaomi Home app cannot find the device, ensure the sensor is powered on and within range of your smartphone or a Bluetooth gateway. Try scanning the QR code on the sensor or in the manual. - Inaccurate Detection:
Check the sensor's placement and ensure there are no obstructions in its detection path. Adjust the angle if necessary. Consider activating the high-sensitivity mode in the app for detecting subtle movements. - Automation Not Working:
Verify that the sensor is correctly linked to a compatible Bluetooth gateway. Ensure all smart devices involved in the automation scenario are properly configured and connected within the Xiaomi Home app. Check the app for any error messages or status updates. - App-Related Issues:
The Xiaomi Home app is continuously updated. If you encounter issues, ensure your app is the latest version. Refer to the in-app instructions or Xiaomi's official support resources for the most current guidance. - Region Compatibility:
Some Xiaomi smart home products may have region-specific versions (e.g., Global vs. China). Ensure your sensor's version is compatible with your region's Xiaomi Home app server settings.
7. User Tips
- Battery Purchase: Remember to purchase a CR2450 battery separately, as it is not included with the sensor.
- App Configuration is Key: Many advanced features, such as alert functions and high-sensitivity mode, require specific configuration within the Xiaomi Home app. Explore the app's settings for full functionality.
- Gateway for Automation: For advanced automation scenarios involving other smart devices (e.g., lights, air purifiers), a compatible Bluetooth gateway is essential. Ensure your smart home setup includes one.
- Optimal Placement: Experiment with different installation positions and angles to find the best coverage for your desired detection area. The flexible bracket allows for easy adjustments.
8. Warranty and Support
For detailed warranty information, please refer to the warranty card included with your product or contact your point of purchase. Xiaomi's official website and the Xiaomi Home app are excellent resources for product support, FAQs, and the latest software updates.