1. Product Overview
The KENRONE KR-Y4621F is a fingerprint-activated smart lock designed for cabinets, drawers, cupboards, and lockers. It provides keyless entry, enhanced security features, and clear status indicators for convenient and reliable access control.
Image 1.1: Front view of the KENRONE KR-Y4621F Fingerprint Smart Cabinet Lock.
2. Key Features
- Dual Emergency Unlock: Provides access via a manager fingerprint if user fingerprints are forgotten, or through a paired USB electronic key during power outages. One electronic key can manage multiple locks.
- Anti-Theft Protection: The system emits 2 beeps and a red flash after 1 incorrect fingerprint attempt. After 5 consecutive incorrect attempts, the lock automatically engages a 210-second lockout. A valid manager fingerprint can instantly unlock the device.
- Two Operating Modes:
- Private/Single Key Mode (Default): Requires one registered fingerprint for unlocking.
- Double Key Mode: Requires two different registered fingerprints for unlocking, suitable for high-security applications.
- Intelligent Status Alerts: Visual and auditory prompts indicate lock status:
- Green light: Correct operation.
- Red light: Error.
- Blue light: Low voltage or setup mode.
- RGB blinking: Charging in progress. Solid green: Fully charged.
Image 2.1: The smart lock features keyless entry and a capacity for 50 unique fingerprints.
3. Package Contents
Verify that all items are present in the package:
- Fingerprint Smart Cabinet Lock Unit
- USB Charger Cable
- Door Stopper
- Electronic Key
- Pick Tool
- Screws and Nuts for Installation
4. Specifications
| Feature | Detail |
|---|---|
| Brand | KENRONE |
| Model Number | KR-Y4621F |
| Special Feature | Fingerprint Recognition |
| Lock Type | Combination Lock |
| Material | Metal |
| Item Dimensions (L x W x H) | 1.83 x 1.81 x 0.94 inches (46.5 x 46 x 24 mm) |
| Recommended Uses | Cabinet, Drawer, Cupboard, Locker |
| Color | Silver |
Image 4.1: Detailed dimensions of the lock and the required installation hole size (19.5mm/0.77" x 16.5mm/0.65").
5. Installation Guide
Follow these steps to install your KENRONE KR-Y4621F Fingerprint Smart Cabinet Lock:
- Drill and Prepare Keyhole: Drill a keyhole with the specified dimensions (19.5mm/0.77" x 16.5mm/0.65") into the cabinet or drawer where the lock will be installed. Ensure the hole is clean and smooth.
- Install and Secure Lock Body: Insert the main lock body into the prepared keyhole from the outside of the cabinet. Ensure it sits flush against the surface.
- Twist the Hex Nut: From the inside of the cabinet, secure the lock body by twisting the provided hex nut onto the threaded shaft of the lock. Tighten firmly.
- Adjust Latch Position: Attach the latch mechanism to the inside of the lock. Use the provided screws and a screwdriver to adjust the position of the latch to ensure proper alignment and secure locking with the cabinet frame.
Image 5.1: Drilling the keyhole according to the specified dimensions.
Image 5.2: Placing the lock body into the drilled hole.
Image 5.3: Adjusting the latch for optimal fit and security.
6. Operating Instructions
6.1 Fingerprint Enrollment
The lock supports up to 50 unique fingerprints. The first fingerprint registered becomes the administrator (manager) fingerprint. This fingerprint is essential for adding new users, deleting users, and emergency unlocking.
- Initial Enrollment (Administrator): When the lock is new or reset, touch the fingerprint sensor. The blue light will flash. Place your finger on the sensor multiple times (typically 5-10 times) until the lock confirms successful enrollment with a green light and a beep. This first registered fingerprint is the administrator.
- Adding User Fingerprints: To add more fingerprints, place the administrator finger on the sensor until the blue light flashes. Then, have the new user place their finger on the sensor multiple times until a green light and beep confirm successful enrollment.
- Deleting Fingerprints: To delete all registered fingerprints, place the administrator finger on the sensor and hold it for approximately 10 seconds until the red light flashes and a long beep sounds. All user fingerprints will be cleared. The administrator fingerprint will need to be re-enrolled.
6.2 Unlocking the Lock
The lock supports two operating modes:
- Single Key Mode (Default): Simply place a registered fingerprint on the sensor. The lock will unlock with a green light and a click.
- Double Key Mode: To activate this mode, refer to the detailed instructions in the full user manual (contact support if not included). In Double Key Mode, two different registered fingerprints must be placed on the sensor sequentially to unlock.
Image 6.1: Demonstrates unlocking with a single fingerprint and the process for double fingerprint authentication.
6.3 Emergency Unlock
In case of forgotten fingerprints or power failure:
- Manager Fingerprint: If other user fingerprints are forgotten, the administrator (manager) fingerprint can always unlock the device.
- USB Electronic Key: During a power outage, connect the provided USB electronic key to the lock's emergency interface. This will provide temporary power to unlock the device.
Image 6.2: Shows fingerprint unlocking and the use of the electronic key for initialization or emergency access.
7. Maintenance
7.1 Charging the Lock
The lock features a USB emergency interface for charging. When the battery is low, the blue light will flash. Connect the provided USB charger cable to the lock and a power source. The RGB light will blink during charging and turn solid green when fully charged.
Image 7.1: The lock being charged via its USB emergency interface, indicating 12+ months standby time.
7.2 Battery Life
The lock is designed for low power consumption, offering over 12 months of standby time on a single charge.
8. Troubleshooting
- Lock Not Responding: Check the battery level. If the blue light is flashing, recharge the lock using the USB emergency interface.
- Fingerprint Not Recognized: Ensure your finger is clean and dry. Try repositioning your finger on the sensor. If multiple attempts fail, use the administrator fingerprint or the electronic key for emergency unlock.
- Accidental Lockout: If you are locked out due to forgotten fingerprints or a dead battery, use the administrator fingerprint or the USB electronic key for emergency access.
- Anti-Theft Alarm Triggered: If the lock emits 2 beeps and a red flash, it indicates an incorrect fingerprint attempt. After 5 consecutive errors, the lock will enter a 210-second lockout period. Use a valid manager fingerprint to reset and unlock.
9. Safety Information
- Do not expose the lock to extreme temperatures or moisture.
- Avoid using abrasive cleaners or solvents on the lock surface.
- Keep the electronic key and USB charger out of reach of children.
- Ensure proper installation to prevent unauthorized removal.
10. Warranty and Support
If you did not receive a physical user manual with your product, or if you require further assistance with setup, operation, or troubleshooting, please contact KENRONE customer support directly. We are committed to providing a detailed step-by-step guide and support to ensure you can fully utilize all functions of your smart lock.
For support, please visit the KENRONE Store on Amazon or refer to the contact information provided with your purchase.
