1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Harfo Fingerprint Door Lock, Model A01. This advanced keyless entry system offers multiple unlocking methods for enhanced security and convenience in residential and office environments. Please read this manual thoroughly before installation and use to ensure proper function and longevity of your device.
Image 1.1: The Harfo Fingerprint Door Lock (Aged Bronze) shown with its accompanying mobile application interface and IC cards, highlighting its smart capabilities.
2. Product Features
The Harfo A01 Fingerprint Door Lock is designed with a variety of features to provide secure and flexible access control:
- Multiple Unlock Methods: Access your property using fingerprint, passcode, IC card, backup physical key, or through the dedicated mobile application.
- Remote Control & Wi-Fi Access: When paired with a Harfo Wi-Fi Gateway (sold separately), you can remotely lock/unlock the door, set up temporary passcodes, and review access records from anywhere.
- Advanced Fingerprint Sensor: Features a 3D fingerprint sensor for rapid (0.3s) and highly accurate (up to 99.86%) biometric identification, suitable for all ages.
- Anti-Peep Touchscreen Keypad: Prevents unauthorized viewing of your passcode by allowing you to enter random digits before or after your actual code.
- Reversible Handle: Designed for compatibility with both left-handed and right-handed door installations.
- Durable Construction: Made from high-quality zinc material for enhanced security and longevity.
- Voice Control Compatibility: Integrate with Amazon Alexa or Google Assistant for voice commands when connected to a Harfo Wi-Fi Gateway (sold separately).
- Automatic Locking: Configurable auto-lock function ensures your door is always secured after closing.
- USB Battery Backup: Provides an emergency power option via USB in case of complete battery depletion.
- High User Capacity: Supports up to 300 unique users, making it ideal for homes, offices, and rental properties.
Image 2.1: Detailed diagram illustrating the various components and features of the Harfo Fingerprint Door Lock.
3. Package Contents
Please verify that all items are present in your package:
- Harfo Fingerprint Door Lever Lock (Exterior and Interior Assemblies)
- 2 x Backup Keys
- 3 x IC Cards
- Accessories Bag (screws, spindle, strike plate, etc.)
- User Manual (this document)
4. Setup and Installation
The Harfo Fingerprint Door Lock is designed for easy installation on most standard US wooden doors.
4.1 Door Compatibility
- Door Thickness: Compatible with doors ranging from 1 3/8 inches to 2 3/16 inches (35mm-55mm) thick.
- Door Type: Suitable for standard US wooden doors. Not recommended for iron or screen doors.
- Handle Reversibility: The door handle is reversible, accommodating both left-handed and right-handed door orientations.
- Pre-drilled Holes: For standard installations, no additional boring is typically required. However, depending on your existing door preparation, a small additional hole may be needed for mounting.
Image 4.1: Visual guide demonstrating the adaptability of the Harfo lock to different door configurations, replacing traditional door levers and knobs.
4.2 Installation Steps
For detailed, step-by-step installation instructions, please refer to the dedicated installation guide included in your product packaging. Ensure you have the necessary tools (screwdriver, measuring tape) before beginning.
- Install the latch and strike plate.
- Mount the exterior and interior lock assemblies.
- Connect the cables.
- Install 4 AA batteries (not included).
- Test the lock's mechanical function.
Image 4.2: The Harfo lock is designed for straightforward replacement of existing mechanical door levers and knobs.
Image 4.3: Dimensional specifications of the Harfo lock, crucial for ensuring proper fit and installation on your door.
5. Operating Instructions
The Harfo A01 lock offers multiple convenient ways to lock and unlock your door.
Image 5.1: Overview of the multiple methods available for locking and unlocking the Harfo smart door lock.
5.1 Unlocking Methods
- Fingerprint: Place your registered finger on the sensor for instant unlock. The 3D sensor provides quick and accurate recognition.
- Passcode: Enter your registered numerical passcode on the touchscreen keypad. Utilize the anti-peep function by entering random digits before or after your actual code to obscure it from onlookers.
- IC Card: Tap a registered IC card against the designated reader area on the lock.
- Backup Key: In case of emergency or battery depletion, use the provided physical backup keys to unlock the door. The keyhole is discreetly located.
- Mobile Application (Bluetooth): Use the dedicated Harfo app on your smartphone to unlock the door via Bluetooth when within range.
- Mobile Application (Wi-Fi - Gateway Required): With the Harfo Wi-Fi Gateway (sold separately), you can unlock the door remotely from anywhere via the app.
Image 5.2: Visual representation of the five primary methods to unlock your Harfo smart door lock: fingerprint, passcode, IC card, physical key, and mobile app.
5.2 Locking Methods
- Automatic Lock: The lock can be configured to automatically lock after a set period once closed.
- Manual Lock: Press and hold the '#' key on the keypad, or use the mobile application to manually lock the door.
5.3 User Management (via App)
The Harfo mobile application allows for comprehensive management of users and access permissions.
- Adding Users: Register new fingerprints, passcodes, and IC cards for family members, guests, or employees.
- Temporary Access: Generate time-limited passcodes or eKeys for visitors, ideal for short-term rentals or service providers.
- Access Records: View a history of who entered and when, providing an audit trail for security.
- Passage Mode: Set the lock to remain unlocked for a specified period, useful for high-traffic times.
Image 5.3: Example scenario demonstrating the convenience of remotely sending passcodes to grant access.
5.4 Voice Control (Gateway Required)
To enable voice control functionality with Amazon Alexa or Google Assistant, the Harfo Wi-Fi Gateway (sold separately) is required. Once connected, you can use voice commands to lock or unlock your door.
Image 5.4: Illustrates the convenience of voice-controlled unlocking via smart assistants like Alexa, requiring the separate Harfo Wi-Fi Gateway.
6. Maintenance
Proper maintenance ensures the optimal performance and longevity of your Harfo Fingerprint Door Lock.
6.1 Battery Management
- Battery Type: The lock requires 4 AA batteries (not included).
- Battery Life: Under normal usage, batteries can last up to 1 year.
- Low Battery Warning: The lock will provide an audible and/or visual alert when batteries are low. Replace all four batteries promptly when this occurs.
- Emergency Power: If batteries completely deplete, you can use the USB battery backup port on the exterior unit with a portable power bank to temporarily power the lock and gain entry.
Image 6.1: Illustrations of the lock's battery life and the convenient USB emergency power backup feature.
6.2 Cleaning
Clean the lock's exterior surfaces with a soft, damp cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and electronic components. Regularly wipe the fingerprint sensor to ensure optimal recognition.
7. Troubleshooting
If you encounter issues with your Harfo Fingerprint Door Lock, please refer to the following common troubleshooting steps. For more detailed solutions, consult the full user manual or contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock does not respond (no lights, no sound). | Dead batteries. | Replace all 4 AA batteries. Use the USB backup power if unable to open. |
| Fingerprint not recognized. | Finger dirty/wet, sensor dirty, unregistered fingerprint, improper placement. | Ensure finger and sensor are clean and dry. Try different finger angles. Re-register fingerprint if issue persists. |
| Passcode not working. | Incorrect code, anti-peep feature confusion, keypad malfunction. | Verify the passcode. Ensure you are entering the correct sequence. Try a factory reset if necessary (refer to manual). |
| App cannot connect to lock. | Bluetooth off, lock too far, app not updated, gateway issue (if applicable). | Ensure Bluetooth is enabled on your phone and you are within range. Restart the app. Check gateway connection if using Wi-Fi. |
| Lock does not fully engage/disengage. | Misalignment during installation, obstruction in door frame. | Check door frame and strike plate for obstructions. Re-check installation alignment. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | HARFO |
| Model Name | A01 |
| Dimensions (L x W x H) | 7.2 x 5.9 x 6.5 inches |
| Item Weight | 5.37 pounds |
| Material | Zinc |
| Color | Aged Bronze |
| Lock Type | Biometric |
| Power Source | Battery Powered (4 AA batteries, not included) |
| Connectivity | Bluetooth, Wi-Fi (with optional Harfo Gateway) |
| User Capacity | Up to 300 users |
| Door Thickness Compatibility | 1 3/8" to 2 3/16" (35mm-55mm) |
| Included Components | Door lever lock, 2 Backup keys, 3 IC cards, Accessories bag, User manual |
9. Warranty and Support
HARFO stands behind the quality of its products.
- Product Warranty: Your Harfo Fingerprint Door Lock comes with a 12-month product warranty from the date of purchase.
- Customer Support: HARFO provides lifetime customer support for this product.
- Contact: For warranty claims, technical assistance, or any questions regarding your lock, please refer to the contact information provided on the HARFO official website or the contact details in your product packaging.
