1. Introduction
The HARFO Smart Door Lock (Model A01) offers advanced security and convenience for your home, office, or apartment. This heavy-duty keyless entry system provides multiple unlocking methods, full app control, and robust features designed for modern living. This manual provides comprehensive instructions for installation, operation, and maintenance of your new smart door lock.
Figure 1.1: Harfo Smart Door Lock with its digital keypad, fingerprint scanner, and accompanying mobile application interface, along with three IC cards.
2. Package Contents
Please verify that all items listed below are included in your package:
- Door Lever Lock (Exterior and Interior Assemblies)
- 2 x Backup Keys
- 3 x IC Cards
- Accessories Bag (screws, spindle, etc.)
- User Manual
3. Specifications
| Feature | Description |
|---|---|
| Brand | HARFO |
| Model Name | A01 |
| Lock Type | Biometric, Keypad |
| Unlock Ways | Fingerprint, Passcode, IC Cards, APP Control, Physical Keys |
| Material | Zinc |
| Color | Black |
| Item Dimensions (L x W x H) | 6.5 x 7.2 x 5.9 inches |
| Item Weight | 4.88 pounds |
| Door Thickness Range | 1 3/8 inch to 2 3/16 inch (35mm-55mm) |
| User Capacity | Up to 300 (Fingerprint, Passcode, IC Card) |
| Power Source | 4 x AA Batteries (not included) |
| Connectivity | Bluetooth (Wi-Fi with optional Gateway) |
| Controller Type | App, Touch, Google Assistant, Amazon Alexa, SmartThings (with optional Gateway) |
Figure 3.1: Detailed dimensions of the Harfo Smart Door Lock, indicating interior and exterior measurements and compatible door thickness.
4. Setup and Installation
The HARFO Smart Door Lock is designed for easy installation with minimal tools. A Phillips head screwdriver is the primary tool required. No extra drilling is needed for standard door preparations, and no locksmith is typically required.
4.1. Pre-Installation Checklist
- Ensure your door thickness is between 1 3/8 inch and 2 3/16 inch (35mm-55mm).
- Confirm the door has a standard bore hole for a lever lock.
- Gather a Phillips head screwdriver.
- Have 4 AA batteries ready (not included).
4.2. Installation Steps
- Remove Existing Hardware: Unscrew and remove your current door knob and latch mechanism.
- Install Latch: Insert the new latch into the door edge and secure it with screws. Ensure the latch bolt faces the correct direction for your door swing.
- Install Exterior Assembly: Thread the spindle and wiring through the door's bore hole from the exterior side. Align the exterior assembly with the latch.
- Install Interior Mounting Plate: From the interior side, connect the wiring and secure the interior mounting plate to the exterior assembly using the provided screws. Ensure the plate is flush and stable.
- Connect Interior Assembly: Connect the wiring from the exterior assembly to the interior assembly. Carefully align the interior assembly with the mounting plate and secure it with screws.
- Insert Batteries: Open the battery cover on the interior assembly and insert 4 AA batteries. Close the cover securely.
- Test Operation: Test the handle movement and latch operation from both sides.
Figure 4.1: Illustration of the easy installation process, showing a person using a drill to secure the lock components.
4.3. Reversible Handle Direction
The HARFO Smart Door Lock features a reversible handle, making it suitable for both left-handed and right-handed doors. Refer to the detailed instructions in the included user manual for changing the handle direction if needed.
Figure 4.2: The door lock handle can be easily reversed to accommodate both left and right-handed door configurations.
5. Operating the Smart Door Lock
Your HARFO Smart Door Lock offers five convenient ways to unlock your door:
5.1. Unlocking Methods
- Fingerprint: Place your registered finger on the biometric sensor for quick access. The lock will flash green upon successful unlock.
- Passcode: Enter your programmed passcode on the digital keypad. The anti-peep function allows you to enter random digits before or after your actual code to protect your privacy.
- IC Card: Tap one of the included IC cards against the keypad area to unlock the door.
- Mobile App (Bluetooth/Wi-Fi):
- Bluetooth Control: Use the dedicated mobile application (TTLock App recommended) to unlock the door via Bluetooth when you are within range.
- Remote Wi-Fi Access (Gateway Required): For remote unlocking and advanced features like checking access records and setting codes from anywhere, pair your lock with a HARFO Wi-Fi Gateway (sold separately).
- Physical Key: In case of battery depletion or other emergencies, use one of the provided backup physical keys to unlock the door. The keyhole is discreetly located behind a magnetic cover on the handle.
Figure 5.1: The Harfo Smart Door Lock offers five versatile unlocking methods for enhanced convenience and security.
Figure 5.2: The anti-peep password feature allows users to enter random digits before or after their actual code to prevent others from guessing it.
5.2. Smart Features and Modes
- Auto-Lock: The lock can be configured to automatically lock after a set period of time, ensuring your property remains secure.
- Private Mode: This mode can be activated from the interior side of the lock, preventing any external access (fingerprint, passcode, IC card, app) until manually deactivated. Ideal for enhanced privacy.
- User Management: Authorize multiple administrators and generate permanent, one-time, or customized passcodes for guests, housekeepers, or temporary visitors via the app.
- Access Records: View a detailed history of who entered and when through the mobile application.
- Voice Control Integration: When paired with the HARFO Wi-Fi Gateway (sold separately), the lock supports voice control via Amazon Alexa and Google Assistant.
Figure 5.3: With the optional Harfo Gateway, the smart lock can be integrated with voice assistants like Alexa for convenient voice control.
Figure 5.4: The mobile application provides a detailed log of all unlock events, including the method and user.
6. Maintenance
6.1. Battery Replacement
The HARFO Smart Door Lock is powered by 4 AA batteries, offering up to 1 year of battery life. The mobile app will provide low battery alerts. To replace batteries:
- Remove the battery cover on the interior assembly.
- Replace all 4 AA batteries with new ones.
- Securely close the battery cover.
Figure 6.1: The smart lock offers extended battery life, reducing the frequency of battery replacements.
6.2. Emergency Power
If the lock's battery completely drains, an emergency USB port is located at the bottom of the exterior assembly. You can use a power bank to temporarily charge the lock and gain access.
Figure 6.2: An emergency USB port allows for temporary power supply using a power bank if batteries run out.
6.3. Cleaning
Wipe the lock's surface with a soft, damp cloth. Avoid using abrasive cleaners or solvents that could damage the finish or electronic components.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock not responding | Low or dead batteries. | Replace batteries or use emergency USB power. |
| Fingerprint not recognized | Finger is wet, dirty, or improperly placed. Unregistered fingerprint. | Ensure finger is clean and dry. Reposition finger. Register fingerprint via app. |
| Passcode not working | Incorrect code entered. Code expired or deactivated. | Verify passcode. Check app for code status. |
| App connection issues | Bluetooth is off. Lock is out of range. Gateway not connected (for Wi-Fi). | Enable Bluetooth. Move closer to the lock. Check Gateway connection. |
| Lock does not auto-lock | Auto-lock feature is disabled or timer is set too long. | Enable auto-lock and adjust timer settings in the app. |
8. Warranty and Support
HARFO provides a 12-month warranty for this product. For any questions, technical support, or warranty claims, please contact HARFO customer service through the following channels:
- Email: [Insert HARFO Support Email Here]
- Website: Visit the official HARFO website for FAQs and additional resources.
Please retain your purchase receipt as proof of purchase for warranty purposes.
