Introduction
The Xiaomi Smart Door Lock 2 Finger Vein Version is an advanced, fully automatic smart door lock designed for enhanced home security and convenience. It integrates multiple unlocking methods, including cutting-edge finger vein recognition, and can be managed via the Mi Home APP. This manual provides essential information for the proper installation, operation, and maintenance of your smart door lock.
Important Note: This is the Chinese version of the product. To ensure proper functionality, please set the service region in the Mi Home APP to "Chinese Mainland".
Setup
1. Installation Requirements
Before installation, it is crucial to verify that your door meets the necessary specifications. Incorrect measurements can prevent proper installation and functionality.
- Door Thickness: The door thickness must be within the range of 40-120mm.
- Door Gap: The door seam width must be within the range of 2-7mm.
- Door Lock Panel Width: The width of the door lock panel must be at least 110mm.
- Lock Body Eccentricity: L1 or L2 (refer to diagram) must not be less than 20mm.
Refer to the diagram below to measure your door's dimensions accurately:
The following table provides specific guide plate dimensions based on lock body type:
| Lock body type | Shape of guide vanes | Door thickness (mm) | Guide plate length (mm) | Guide plate width (mm) | Door gap (mm) | Is installation supported | Does it support the Heaven and Earth Hook |
|---|---|---|---|---|---|---|---|
| Standard lock body | Right angled single hole | 40-120 | 240/260/280 | 24 | 2-7 | support | Not supported |
| 300 | 26 | ||||||
| 240 | 28 | ||||||
| Right angled double hole | 240/280 | 30 | |||||
| Round corner single hole | 240/280 | 24 | |||||
| 250 | 23 | ||||||
| Overlord lock body | Right angled double hole | 388 | 30/40 | Need modification to support | Not supported | ||
| Wang Li's lock body | Round corner single hole | 210 | 33 | support | Not supported |
Unsupported Installation Scenarios:
- The width of the door lock panel is less than 110mm.
- Lock body eccentricity L1 or L2 is less than 20mm.
2. Initial Setup with Mi Home APP
After physical installation, download the Mi Home APP and follow the in-app instructions to connect your smart door lock. Ensure your phone's region setting in the Mi Home APP is set to "Chinese Mainland" for proper device discovery and functionality.
Operating Instructions
1. Unlocking Methods
The Xiaomi Smart Door Lock 2 offers 10 distinct ways to unlock, providing flexibility and security:
- Finger Vein Recognition: Advanced biometric recognition suitable for all ages, including children and the elderly, as it is less affected by skin conditions.
- AI Fingerprint Recognition: Traditional fingerprint unlocking with AI self-learning for improved accuracy over time.
- Long-term Password: Permanent password for regular access.
- Cycle/One-time Password: Generate temporary passwords for guests or specific timeframes.
- Bluetooth Unlocking: Unlock via Bluetooth connection using the Mi Home APP.
- Xiaomi Mobile Phone (Optional): Unlock using compatible Xiaomi mobile phones.
- NFC Door Card (Optional): Use an NFC-enabled card for quick access.
- Emergency Mechanical Key: Traditional key for backup access.
- Xiaomi Watch (Optional): Unlock with compatible Xiaomi smartwatches.
- Children's Watch (Optional): Unlock with compatible children's smartwatches.
2. AI Finger Vein Recognition
Finger vein recognition offers high security and is difficult to replicate. The system uses AI self-learning, becoming more accurate with each use. It boasts a recognition speed of less than 1 second and a misidentification rate of less than 0.0001%.
The ergonomic handle design allows for quick positioning of the biometric area (thumb recognition fingerprint, index finger recognition finger vein), enabling rapid unlocking.
3. Mi Home APP Management
The Mi Home APP provides comprehensive control and monitoring features:
- Remote Control: View door lock status and receive alarm notifications remotely.
- User Management: Add, modify, or delete user access (fingerprints, passwords, NFC cards).
- Family Sharing: Share management permissions with family members.
- Smart Home Integration: Connects with Xiaomi HyperOS Connect ecosystem for automated scenarios (e.g., lights turning on when you unlock the door).
4. NFC Unlocking Compatibility
NFC unlocking is supported by devices with standard NFC functionality, including Xiaomi, Redmi, and Mitu brand phones, Mi bands, Mitu children's watches, and Xiaomi Smart Lock NFC cards. iOS system devices are currently not supported.
Maintenance
1. Battery Management
The door lock is powered by 8 alkaline dry batteries, providing a long-lasting battery life of up to 1 year. The lock will provide a low battery reminder when power is low (approximately 20% remaining). In case of a completely depleted battery, a Type-C external power bank can be used to provide emergency power for temporary unlocking.
2. Cleaning and Care
To maintain optimal performance and appearance, regularly wipe the lock's surface with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the finish or electronic components.
Troubleshooting
1. Alarm Notifications
The smart door lock is equipped with multiple sensors and will trigger alarms for various security events:
- Door Not Closed/Ajar: Alerts if the door is not fully closed or is left ajar.
- Outer Panel Prized Off: Triggers an alarm if the external panel is tampered with.
- Repeated Trial and Error Unlocking: Alerts after multiple failed unlock attempts.
- Threatening Fingerprint Unlocking: Specific alarm for attempts to unlock with a "threatening" fingerprint (pre-configured for emergency situations).
- Leaving Home Deployment Alarm: Activates when you leave home and the security system is armed.
- Low Battery Alarm: Notifies when battery power is low.
2. Connectivity Issues
If you experience issues connecting to the Mi Home APP or receiving notifications, ensure:
- Your phone's Bluetooth is enabled.
- The Mi Home APP region is set to "Chinese Mainland".
- Your home Wi-Fi network is stable and the lock is within range.
Specifications
| Feature | Specification |
|---|---|
| Model Number | XMZNMS03OD |
| Brand Name | XIAOMI |
| Origin | Mainland China |
| Communication Method | Bluetooth, Wi-Fi (via Mi Home APP) |
| Unlocking Methods | Finger Vein, AI Fingerprint, Long-term Password, Cycle/One-time Password, Bluetooth, Xiaomi Mobile Phone (Optional), NFC Door Card (Optional), Emergency Mechanical Key, Xiaomi Watch (Optional), Children's Watch (Optional) |
| Recognition Speed | ≤ 1 second |
| Misidentification Rate | ≤ 0.0001% |
| Battery Life | Up to 1 year (8 alkaline dry batteries) |
| Emergency Power | Type-C interface |
| Operating Temperature | -25°C to 70°C |
| Fingerprint Head Durability | 200,000 times |
| Switch Door Test | 150,000 times |
| Panel Strength Test | 8000N |
| Security Features | C-level lock cylinder, Integrated security sensors, Communication encryption, Unlock security, Electronic security, Structural security, Alarm system, Storage security |
Warranty and Support
1. Product Warranty
This product comes with a 3-month warranty from the date of delivery. If the item is found to be defective within 5 days of delivery, a full refund or replacement will be offered upon return of the item in its original condition. After 5 days, the item is eligible for free repair, with the buyer responsible for all shipping costs.
2. Customer Support
For any inquiries or technical assistance, please contact Xiaomi customer support. Professional engineers are available for initial free on-site installation services in supported regions.
User Tips
- Verify Door Measurements: Always double-check your door's thickness, guide plate dimensions, and door gap against the specifications before purchasing to ensure compatibility and avoid installation issues.
- Mi Home APP Region: Remember to set the Mi Home APP's service region to "Chinese Mainland" for full functionality of your smart lock.
- Regular Battery Check: Pay attention to low battery reminders and replace batteries promptly to avoid being locked out. Utilize the Type-C emergency power feature if needed.
- NFC Device Compatibility: Be aware that iOS devices are not currently supported for NFC unlocking. Ensure your NFC-enabled devices are compatible.
