Introduction
The TENON K5 is an advanced automatic smart glass door lock designed for enhanced security and convenience. It offers multiple unlocking methods including fingerprint, password, IC smart card, and remote key. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and user satisfaction.

Front view of the TENON K5 Smart Glass Door Lock.
Specifications
| Feature | Detail |
|---|---|
| Brand Name | TENON |
| Model Number | K5 |
| Type | Hand Tool Parts (Smart Lock) |
| Origin | Mainland China |
| Unlock Way | Fingerprint + Password + Card + Remote Key |
| Application | Glass Door |
| Fingerprint Type | Biometric Fingerprint |
| Fingerprint Capacity | 100 Groups (Customization can be increased to 100 groups) |
| User Capacity | 80 Pcs (10 Admin, 30 Normal, 40 Guest Users) |
| System Information | M-link 1.0 |
| Front Plate Dimensions | 180mm*76mm (Zinc Alloy) |
| Back Plate Dimensions | 182mm*76mm (Zinc Alloy) |
| Mortise Lock Type | Automatic, 304 Stainless Steel |
| Static Current | ≤40μA |
| Dynamic Current | ≤140μA |
| Power | 4PCS AA Alkaline Battery |
| Emergency Power | 5V USB |
| Alarming Voltage | 4.3V |
| Voice Guidance | English |
| Door Thickness | 8-12mm |
| Certification | CE FCC |
| Waterproof Level | IPX54 (for light rain or water sprinkling) |
Setup and Installation
The TENON K5 smart lock is designed for innovative and simple installation, suitable for both double-leaf and single-leaf glass doors. It typically requires no wiring or drilling for standard installations.
Door Compatibility:
- Door Type: Glass Door (Double-leaf door, Single-leaf door)
- Door Thickness: 8-12mm
Installation Process:
- Preparation: Ensure your glass door meets the specified thickness requirements (8-12mm).
- Mounting: The lock is designed for easy installation without the need for drilling or complex wiring. Follow the specific mounting instructions provided in the physical product manual for your door type (single or double leaf).
- Power Installation: Insert 4 PCS AA Alkaline Batteries into the designated battery compartment.
- Initial Setup: After installation, power on the lock. The M-link 1.0 operation system with OLED screen display will guide you through initial setup.

Diagram illustrating the simple installation of the TENON K5 lock, highlighting no wiring and no drilling.

Image showing the TENON K5 lock installed on a glass door, indicating its compatibility with both double-leaf and single-leaf door types.
Operating Instructions
The TENON K5 offers multiple secure and convenient ways to unlock your glass door.
Unlocking Methods:
- Fingerprint: The lock features a top semiconductor fingerprint sensor for quick and secure biometric identification (less than 0.5s). It supports up to 100 fingerprint groups.
- Password: Enter your registered password on the digital keypad. The lock includes a password protection feature to prevent peeping.
- IC Smart Card: Use a registered IC smart card to unlock the door.
- Remote Key: Utilize the remote key for convenient unlocking from a distance.

A hand interacting with the fingerprint sensor on the TENON K5 lock, demonstrating fingerprint unlocking.

Close-up of the TENON K5 lock highlighting the advanced semiconductor fingerprint sensor.
User Management:
The lock supports a total capacity of 80 users, including:
- 10 Administrator users
- 30 Normal users
- 40 Guest users
Fingerprint management allows for easy addition or deletion of employee fingerprints, simplifying access control for offices.
Passway Function:
The passway mode allows the door to be unlocked without verification, suitable for periods of high traffic. To activate or deactivate passway mode, long-press the 'U' key on the keypad.

Image showing the TENON K5 lock with an indication of the passway function, allowing unlocking without verification.
Automatic Locking:
The lock features automatic unlocking and locking for convenience and security.
Maintenance
Battery Replacement:
The lock is powered by 4 PCS AA Alkaline Batteries. Under normal usage (8-10 times per day), the batteries are expected to last around 12 months.
Low Battery Alarm:
When the battery voltage drops to 4.3V, the lock will trigger a low battery alarm, indicating that the batteries need to be replaced soon.
Emergency Power:
In case of complete battery depletion, the lock can be temporarily powered using a 5V USB power source for emergency access.
Cleaning:
Wipe the lock's surface with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the finish or electronic components.
Troubleshooting
- Q: What if the electronic parts do not work?
- A: You can insert a needle into the restart button to restart the system. If it still does not work, you can open the door using the mechanical key.
- Q: How to restore to factory mode?
- A: You can clear all records via the system menu or by inserting a needle into the "Clear" button.
- Q: What happens if I input the wrong password or fingerprint multiple times?
- A: If you input the wrong password or fingerprint more than 5 times, the lock will trigger an alarm, and the system will be frozen for 3 minutes as a security measure.
- Q: What if the mechanical key is lost?
- A: The cylinder of the lock is changeable. If the mechanical key is lost, it is recommended to change the cylinder for security reasons.
- Q: Is the lock suitable for outdoor application?
- A: The lock has an IPX54 waterproof level, meaning it can withstand light rain or water sprinkling. However, for optimal longevity and performance, it is recommended to install it indoors.
Warranty and Support
Warranty:
The TENON K5 Smart Glass Door Lock comes with a 3-year 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.
Support:
For any technical assistance, troubleshooting, or warranty inquiries, please contact your retailer or TENON customer service. TENON is a high-tech enterprise specializing in digital smart locks with 28 years of manufacturing experience, ensuring reliable product support.
TENON offers OEM/ODM services and has systematic R&D and quality control teams to ensure product quality and support.





