1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Ozone Smart Internal Door Lock Trinity, model OZ-FDL-22. Please read this manual thoroughly before installation and use to ensure proper functionality and safety. This smart lock offers advanced security features and convenient access methods for your home or office.
2. Safety Information
- Ensure all components are present and undamaged before installation.
- Do not attempt to disassemble or modify the lock. This may void the warranty and compromise security.
- Keep emergency keys in a secure location outside the premises to prevent lockout.
- Use only recommended battery types. Replace batteries promptly when low battery notifications are received.
- Protect the lock from extreme temperatures and moisture.
- Regularly check the lock for any signs of wear or damage.
3. Package Contents
Please verify that all the following items are included in your package:
- Ozone Smart Internal Door Lock (Front and Rear Handles)
- Mortise Lock Body
- Strike Plate and Strike Box
- Mounting Screws and Accessories
- Emergency Keys (2 pcs)
- User Manual
- Drilling Template

Image: The Ozone Smart Internal Door Lock Trinity, showcasing its sleek black and silver design with a prominent fingerprint sensor on the handle.
4. Setup and Installation
The Ozone Smart Lock is designed for easy installation on doors with a thickness ranging from 35mm to 60mm. It is suitable for both wooden and metal doors.

Image: Two examples of the smart lock installed, one on a classic wooden door and another on a modern metal door, demonstrating its versatility.
4.1 Pre-installation Check
- Verify door thickness is within 35-60mm.
- Ensure door frame is suitable for strike plate installation.
4.2 Mechanical Installation
- Use the provided drilling template to mark and drill holes on the door.
- Install the mortise lock body into the door edge.
- Connect the cables from the front handle to the rear handle.
- Securely attach the front and rear handles to the door using the mounting screws.
- Install the strike plate and strike box on the door frame, ensuring proper alignment with the mortise latch.
4.3 Initial Setup and App Pairing
- Insert the required batteries into the battery compartment (typically located on the rear handle).
- Download the Ozone Smart Lock application from your device's app store.
- Follow the in-app instructions to create an account and add your new lock. This typically involves scanning a QR code or entering a device ID.
- Set up the administrator fingerprint and password as prompted by the app.
5. Operating Instructions
The Ozone Smart Lock offers multiple convenient ways to access your premises.

Image: An infographic detailing the Trinity Series features, including access modes (Mobile, Fingerprint, Emergency Key), user access rights (Admin, User), alarms (Low Battery Notification), smart features (Passage Mode, Audit Trail, Low Power Consumption, USB for Battery Backup), supported door thickness (35-60mm), and finish (Black/SC).
5.1 Access Modes
- Fingerprint Access: Place your registered finger on the fingerprint sensor. The lock will unlock if the fingerprint is recognized.
- Mobile App Access: Use the Ozone Smart Lock app on your smartphone to remotely unlock the door via Wi-Fi connectivity.
- Emergency Key Access: In case of battery failure or system malfunction, use the physical emergency key to unlock the door.
5.2 User Management
The lock supports different user access rights: Admin and User.
- Admin User: The first registered user is typically the administrator. The admin can add/delete other users, manage settings, and view audit trails.
- Regular User: Can unlock the door using their registered fingerprint or mobile access, but cannot modify lock settings.
Refer to the Ozone Smart Lock app for detailed instructions on adding, modifying, or deleting user fingerprints and access codes.
5.3 Smart Features
- Passage Mode: This mode allows the door to remain unlocked for continuous access during specific periods, such as during a party or when moving items. Activate/deactivate via the mobile app.
- Audit Trail: The lock records all access events (unlocks, failed attempts). You can view the detailed audit trail through the mobile application, providing a history of who accessed the door and when.
- Low Power Consumption: The lock is designed for efficient power usage, extending battery life.
- USB for Battery Backup: In case the batteries completely drain, a USB port is available for temporary power supply using a power bank, allowing you to unlock the door and replace batteries.
6. Maintenance
- Battery Replacement: The lock will provide a "Low Battery Notification" through the app and potentially an audible/visual alert on the lock itself. Replace all batteries promptly with new ones of the recommended type.
- Cleaning: Wipe the lock surface with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the finish or electronic components.
- Fingerprint Sensor Care: Keep the fingerprint sensor clean and dry for optimal performance. Avoid scratching the sensor surface.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock does not respond. | Dead batteries. | Replace batteries. Use USB backup power if completely drained. |
| Fingerprint not recognized. | Finger wet/dirty, sensor dirty, unregistered fingerprint. | Clean finger and sensor. Re-register fingerprint if necessary. Try another registered fingerprint or emergency key. |
| App cannot connect to lock. | Wi-Fi issue, Bluetooth off, lock not in pairing mode. | Check Wi-Fi connection. Ensure Bluetooth is enabled on phone. Restart app and lock. Re-pair if needed. |
| Lock makes unusual noises. | Mechanical obstruction, loose parts. | Check for obstructions around the latch and bolt. Ensure all screws are tightened. If problem persists, contact support. |
8. Specifications

Image: A technical diagram illustrating the precise dimensions of the Ozone Smart Lock components, including handle length, width, and mortise measurements.
| Feature | Detail |
|---|---|
| Brand | Ozone |
| Model Number | OZ-FDL-22 |
| Lock Type | Smart Door Lock (Key Lock, Fingerprint, App) |
| Material | Metal |
| Recommended Uses | Home, Office |
| Style | Modern |
| Colour | Black |
| Finish Type | Metal |
| Controller Type | Touch Control |
| Control Method | App |
| Connectivity Protocol | Wi-Fi |
| Door Thickness Compatibility | 35-60 mm |
| Item Weight | 1 kg 310 g |
| Package Dimensions | 22.8 x 22.6 x 9.6 cm |
9. Warranty and Support
Your Ozone Smart Internal Door Lock Trinity OZ-FDL-22 comes with a 2 Year Warranty from the date of purchase, covering manufacturing defects. Please retain your purchase receipt as proof of warranty.
For technical support, troubleshooting assistance, or warranty claims, please contact Ozone customer service. Refer to the official Ozone website or your product packaging for the most up-to-date contact information.
Online Resources: Visit the official Ozone website for FAQs, updated manuals, and software downloads.
Customer Service: [Insert specific contact details if available, otherwise advise checking product packaging or website]
10. Product Placement Considerations

Image: A visual representation suggesting the ideal placement of the smart lock within a home setting, emphasizing its integration into modern living spaces.
While the lock is designed for internal doors, consider the following for optimal performance and longevity:
- Avoid direct exposure to harsh sunlight or extreme weather conditions, even if installed on an internal door that might be exposed to elements through a window.
- Ensure the installation area has stable Wi-Fi coverage for reliable app connectivity.
- Install in a location where the fingerprint sensor is easily accessible and not prone to excessive dust or moisture.
11. Official Product Videos
No official product videos from the seller were found that meet the embedding criteria (e.g., specific video URLs with creator_type: "Seller"). Please refer to the product page or manufacturer's website for any available video content.





