Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Harfo Fingerprint Door Lock. Please read this manual thoroughly before installation and use to ensure proper function and safety.
The Harfo Fingerprint Door Lock offers multiple unlocking methods including fingerprint, passcode, IC cards, backup keys, and full APP control. It is designed for residential and office use, providing enhanced security and convenience.
Package Contents
Please verify that all components are present before beginning installation:
- Smart Door Lock (Front and Rear Panels)
- 2 Backup Keys
- 3 IC Cards
- Accessory Bag (screws, spindle, etc.)
- User Manual (this document)
Image: The Harfo Fingerprint Door Lock, showing the main unit, the TTLock app interface on a smartphone, and three IC cards. This image illustrates the primary components and control methods.
Specifications
| Feature | Detail |
|---|---|
| Brand | HARFO |
| Model Name | Fingerprint Door Lock (Satin Nickel) |
| Lock Type | Keypad, Fingerprint, IC Card, Key, App |
| Material | Zinc |
| Finish Type | Brushed |
| Connectivity | Bluetooth, Wi-Fi (via optional Gateway) |
| Controller Type | Amazon Alexa (via optional Gateway) |
| Power Source | Batteries (4x AA, not included) |
| Door Thickness Compatibility | 1 3/8 inch to 2 3/16 inch (35mm-55mm) |
| Item Weight | 4.93 pounds |
| Reversible Handle | Yes, suitable for left and right-handed doors |
Image: A side view diagram of the Harfo Fingerprint Door Lock, illustrating its dimensions and the compatible door thickness range (35mm-55mm or 1-3/8" to 2-3/16").
Installation Guide
Before installation, ensure your door meets the specified thickness requirements (1 3/8" to 2 3/16" or 35mm-55mm). The lock is designed to replace most standard US wooden door levers or knobs.
Tools Required:
- Phillips Head Screwdriver
- Measuring Tape
- Pencil
Steps:
- Prepare the Door: If replacing an existing lock, remove it. Ensure the door bore hole and backset are standard.
- Install the Latch: Insert the latch into the door edge and secure it with screws. Ensure the latch bolt faces the correct direction for your door swing.
- Install the Exterior Assembly: Feed the cable and spindle through the latch. Align the exterior panel with the door and latch.
- Install the Interior Mounting Plate: Secure the interior mounting plate to the exterior assembly using screws.
- Connect Cables and Install Interior Assembly: Connect the cable from the exterior assembly to the interior assembly. Carefully tuck excess cable into the door. Attach the interior assembly to the mounting plate, ensuring the spindle engages properly. Secure with screws.
- Install Batteries: Open the battery cover on the interior assembly and insert 4 AA alkaline batteries (not included). Close the cover.
- Test the Lock: After installation, test the handle operation and ensure the latch retracts smoothly.
Image: An illustrative diagram highlighting the ease of installation for the Harfo Fingerprint Door Lock, showing key components and their placement during setup.
Image: The Harfo lock installed on a door, demonstrating its compatibility as a replacement for traditional door levers and knobs.
Operating Instructions
The Harfo Fingerprint Door Lock offers multiple ways to unlock and manage access.
Unlocking Methods:
- Fingerprint: Place your registered finger on the fingerprint sensor. The lock will unlock if the fingerprint is recognized.
- Passcode: Enter your registered passcode on the keypad, followed by the '#' key.
- IC Card: Tap a registered IC card against the card reader area on the lock.
- Backup Keys: In case of emergency or battery depletion, use the physical backup keys provided to unlock the door. The keyhole is discreetly located.
- APP Control: Use the TTLock app on your smartphone to unlock the door via Bluetooth. For remote Wi-Fi unlocking, a Harfo Wi-Fi Gateway (sold separately) is required.
Image: An overview illustrating the various methods to lock and unlock the Harfo Fingerprint Door Lock, including APP, keys, fobs (IC cards), fingerprint, password, and auto-lock.
Image: A close-up view of the Harfo lock's fingerprint sensor, emphasizing its rapid 0.3-second unlock capability.
TTLock App Control:
The TTLock app is essential for managing your Harfo Fingerprint Door Lock. Download it from your smartphone's app store.
- Pairing: Follow the in-app instructions to pair your lock via Bluetooth. Ensure Bluetooth is enabled on your phone and you are within range of the lock.
- User Management: Add, modify, or delete fingerprints, passcodes, and IC cards for various users. You can assign temporary or permanent access.
- Generate Passcodes: Create one-time, timed, recurring, or permanent passcodes remotely (with Gateway) or via Bluetooth.
- Access Records: View a history of who unlocked the door and when. This feature provides a security log.
- Settings: Adjust lock settings such as auto-lock timer, volume, and passage mode.
Image: A smartphone screen showing the TTLock app interface, which allows for full control of the Harfo Fingerprint Door Lock, including sending eKeys, generating passcodes, managing IC cards, fingerprints, and viewing access records.
Image: A smartphone displaying the unlock records from the Harfo Door Lock, showing the time and method of entry for different users.
Voice Control (Alexa & Google Assistant):
To enable voice control with Amazon Alexa or Google Assistant, you must pair your Harfo Fingerprint Door Lock with a Harfo Wi-Fi Gateway (sold separately).
- Gateway Setup: Follow the instructions provided with your Harfo Wi-Fi Gateway to set it up and connect it to your home Wi-Fi network.
- Link with Voice Assistant: In the TTLock app, link your account with Amazon Alexa or Google Assistant. Enable the "TTLock" skill/action in your voice assistant app.
- Voice Commands: Once linked, you can use voice commands such as "Alexa, unlock my front door" (you may need to provide a voice code for security).
Image: A family interacting with an Amazon Echo device, demonstrating the voice control feature for the Harfo Door Lock. A note indicates that a Gateway (sold separately) is required for this functionality.
Image: The Harfo lock shown alongside a Harfo Gateway and an Amazon Echo device, illustrating how these components work together to enable smart home integration and voice control.
Maintenance
Battery Replacement:
The Harfo Fingerprint Door Lock requires 4 AA alkaline batteries (not included). When the battery level is low, the lock will provide an audible warning. It is recommended to replace all four batteries simultaneously with new, high-quality alkaline batteries.
- Open the battery cover on the interior side of the lock.
- Remove the old batteries.
- Insert new AA batteries, ensuring correct polarity (+/-).
- Close the battery cover securely.
If the batteries are completely depleted, you can use the backup physical keys or connect a power bank to the emergency USB port on the exterior panel for temporary power to unlock the door.
Image: A visual representation of a battery icon, indicating the low battery status of the Harfo lock, prompting for battery replacement.
Image: A close-up of the Harfo lock's exterior panel, highlighting the USB port for emergency battery backup, allowing temporary power from a power bank.
Cleaning:
Wipe the lock's surface with a soft, damp cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and electronic components.
Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| Lock does not respond. |
|
| Fingerprint not recognized. |
|
| Passcode not working. |
|
| App cannot connect to lock. |
|
| Lock does not auto-lock. |
|
Warranty and Support
Warranty Information:
The Harfo Fingerprint Door Lock comes with a 12-month product warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
This warranty does not cover damage caused by:
- Improper installation or maintenance.
- Unauthorized modification or repair.
- Abuse, misuse, or neglect.
- Accidents or natural disasters.
Customer Support:
For technical assistance, troubleshooting, or warranty inquiries, please contact HARFO customer support. You can typically find contact information on the HARFO official website or through your purchase platform.
HARFO is committed to providing lifetime customer support for its products.
