1. Introduction
Welcome to the future of home security with the YRHAND Z31 Smart Door Lock. This advanced biometric electronic lock integrates 3D face recognition, palm vein recognition, fingerprint access, password entry, card access, and traditional mechanical key options. With its built-in security camera and Tuya-Wifi app connectivity, you can monitor your door, communicate with visitors, and manage access remotely. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and security.
2. Key Features
- 3D Face Recognition: Advanced encryption algorithms for high security and extremely low error rates.
- Palm Vein Recognition: Utilizes near-infrared light absorption for secure unlocking.
- Fingerprint Unlock: Semiconductor sensor with high recognition sensitivity, fast identification (<0.5s), and a false recognition rate of <0.001%.
- Multiple Unlock Methods: Face Recognition, Palm Vein Recognition, App, Mechanical Keys, Card, WiFi, Password, Fingerprint.
- Built-in Visual Doorbell: Receive video calls on your mobile phone and engage in real-time video intercom with visitors.
- Tuya-Wifi APP Remote Control: Remotely unlock, communicate with visitors, and view real-time footage from anywhere.
- Temporary Passwords: Generate time-limited passwords for guests, nannies, or tenants.
- Virtual Password Function: Anti-peeping feature allows entering random numbers before and after the correct password to protect privacy.
- Multiple Security Alerts: Anti-pry alarm, input error alarm (after 5 incorrect attempts), and low battery reminders.
- 4200mAh Rechargeable Lithium Battery: Detachable and rechargeable, offering long standby time.
- Indoor Large Screen & Digital Door Viewer: Enhanced visibility and monitoring from inside.
- Emergency Power Supply: Type-C port for emergency power.
- Mechanical Key Unlock: Traditional keyhole for backup access.
3. Setup and Installation
The YRHAND Z31 Smart Door Lock is designed for drilling installation and is suitable for various door types including Wood, Steel, Stainless Steel, Aluminum, and Brass doors with a thickness of 40-120mm.
3.1 Mortise Selection
It is crucial to choose the correct mortise for your door. The lock supports different mortise types, including 6068 Anti-theft Mortise, 24x240 Square Mortise, and 30x240 Cylindrical Mortise. Please refer to the dimensions below to select the appropriate mortise for your door.
3.2 Installation Steps (General Overview)
- Prepare the door according to the selected mortise dimensions. This typically involves drilling holes for the lock body, handle, and cylinder.
- Install the mortise into the door edge.
- Mount the outer and inner panels of the smart lock, ensuring all cables are correctly connected.
- Secure the lock with screws.
- Install the battery and test all functions.
Note: Detailed drilling templates and specific installation instructions are typically provided with the physical product. It is recommended to consult a professional for installation if you are unsure.
4. Operating Instructions
The YRHAND Z31 Smart Door Lock offers multiple convenient ways to unlock your door.
4.1 Unlock Methods
- APP Unlock: Use the Tuya-Wifi app on your smartphone to remotely unlock the door. The app also allows for real-time video surveillance and two-way audio communication.
- 3D Face Recognition: Stand in front of the lock's camera. The lock will scan your face and unlock if recognized.
- Palm Vein Recognition: Place your palm over the designated sensor. The lock will read your palm vein pattern and unlock.
- Fingerprint Unlock: Place your registered finger on the fingerprint sensor. The lock will unlock quickly upon successful recognition.
- Card Unlock: Tap your registered IC card on the card reader area of the lock.
- Password Unlock: Enter your registered password on the touch keypad. Utilize the virtual password function by entering random numbers before and after your actual password to prevent onlookers from guessing it.
- Mechanical Key Unlock: In case of emergency or battery depletion, use the provided mechanical key to unlock the door via the hidden keyhole.
4.2 Tuya-Wifi App Functions
The Tuya-Wifi app provides comprehensive control and monitoring capabilities:
- Remote Unlock: Unlock your door from anywhere.
- Video Surveillance: Click "Video surveillance" in the app to view real-time footage outside your door.
- Built-in Visual Doorbell: When a visitor rings the doorbell, your phone receives a video call, allowing for video intercom.
- Operation Records: Check the status and history of door lock operations anytime, anywhere.
- Member Management: Add, modify, or remove user access (fingerprints, faces, cards, passwords).
- Temporary Password Generation: Create and manage temporary access codes.
- Smart Linkage: Set up smart home scenarios with other Tuya-compatible devices.
5. Maintenance
5.1 Battery Management
The YRHAND Z31 Smart Door Lock is powered by a 4200mAh built-in rechargeable lithium battery. The battery is detachable for easy recharging. A low battery reminder will alert you when the battery level is less than 20%, prompting you to recharge or replace it. In case of complete battery depletion, you can use the mechanical key or an emergency power supply via the Type-C port.
5.2 Cleaning
To maintain the appearance and functionality of your smart lock, wipe it regularly with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the finish or electronic components.
6. Troubleshooting
The YRHAND Z31 Smart Door Lock is equipped with multiple security alerts to help you identify and resolve potential issues.
- Anti-pry Alarm: If the door lock encounters an attempt to pry it open, the system will sound an alarm and send a push notification to your app.
- Input Error Alarm: If an incorrect password is entered 5 times in a row, the smart lock will automatically lock down and an alarm will be pushed to your app.
- Low Battery Reminder: When the battery level is less than 20%, the door lock will sound an alarm and prompt you to replace or recharge the battery.
7. Specifications
| Attribute | Value |
|---|---|
| Brand Name | YRHAND |
| Model Number | Z31 |
| Power Supply | Built-in Rechargeable Battery |
| Protection Level | IP66 |
| Installation Method | Drilling installation |
| Suitable Door Type | Steel Door, Wooden Door, Brass Door, Stainless Steel Door, Other |
| Finish Type | Other |
| Doorknob Function | Biometric, Key & Keypad |
| Connectivity | WiFi |
| Ways To Unlock | Face Recognition, App, Mechanical Keys, Card, WiFi, Password, FINGERPRINT |
| Material | Zinc Alloy, Aluminum Magnesium alloy |
| Handle Direction | Direction Reversible |
| Origin | Mainland China |
| Certification | CE, FCC |
| Smart home platform | Tuya |
| Door Type | Wood door, Steel door, Stainless Steel door, Aluminum door, Brass door |
| Data Storage Options | Cloud |
| Unlock way | Tuya+Fingerprint + Password + Card + Key |
| Color | Black |
| Door thickness | 40-120mm |
| Lock body | 6068 |
| Battery Life | 100000 Times Normal Open (12 Months) |
8. User Tips
- Installation Considerations: Ensure you accurately measure your door thickness and choose the correct mortise type (e.g., 6068, 24x240, 30x240) before installation. Some installations may require drilling multiple holes, so verify the template carefully.
- Included Components: The lock typically comes with the necessary lock body (mortise) and components for installation. Always check the package contents against the product list upon arrival.
- Battery Life: While the battery offers long standby, regular monitoring of the battery level via the app is recommended to avoid unexpected lockouts.
- App Connectivity: Ensure a stable WiFi connection for optimal remote control and monitoring features.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the YRHAND Official Store directly. Keep your purchase receipt as proof of purchase for any warranty claims.