1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your FTes RFKits Tuya Smart Electronic Digital Lock. Please read this manual thoroughly before installation and use to ensure proper function and safety. Keep this manual for future reference.

Image 1.1: Overview of the FTes RFKits Tuya Smart Electronic Digital Lock, highlighting its various unlocking methods including app, fingerprint, RFID card, password, and key.
2. Safety Information
- Do not attempt to disassemble or repair the lock yourself. Contact customer support for assistance.
- Ensure the door thickness is within the supported range (up to 60 mm) for proper installation.
- Use only specified AA alkaline batteries. Do not mix old and new batteries or different types of batteries.
- Keep mechanical keys in a safe place outside the property to prevent lockout in case of battery failure or electronic malfunction.
- Protect the lock from direct water exposure and extreme temperatures.
- Regularly check battery levels and replace batteries promptly when the low battery reminder activates.
3. Package Contents
Verify that all components are present in the package before proceeding with installation.

Image 3.1: Detailed view of the lock's internal and external components, including the fingerprint sensor, keypad, RFID card reader, keyhole, USB port, and internal circuit board with battery compartment.
- Front Panel Assembly (with Fingerprint Sensor, Keypad, RFID Reader)
- Rear Panel Assembly (with Battery Compartment and Control Board)
- Mortise Lock Body
- Strike Plate and Strike Box
- Mechanical Keys (typically 2)
- RFID Cards (quantity may vary)
- Mounting Screws and Hardware
- Installation Template
- User Manual
4. Product Features
- Multiple Unlocking Methods: TUYA app, fingerprint, access code, RFID key, remote controls, and mechanical key.
- Robust Security: Constructed from durable aluminum alloy with an anti-peep code function and a strong lock cylinder.
- Tuya App Integration: Control the lock remotely, view door opening history, and manage permanent or temporary access for guests.
- Wide Compatibility: Suitable for most standard left and right-handed doors with a thickness up to 60 mm.
- Emergency Power: Powered by 4 AA alkaline batteries (not included) with a low battery reminder. Features a USB interface for emergency charging.
- Bluetooth Connectivity: For seamless app communication.
5. Setup and Installation
5.1 Pre-Installation Check
- Verify door handing (left or right) and ensure the lock is compatible.
- Confirm door thickness is between 35mm and 60mm.
- Gather necessary tools: screwdriver, drill, measuring tape, pencil.
5.2 Mechanical Installation
Follow the detailed instructions provided in the installation template. This typically involves:
- Drilling necessary holes in the door using the template.
- Installing the mortise lock body into the door edge.
- Attaching the front and rear panels, ensuring cables are properly connected and not pinched.
- Installing the strike plate and strike box on the door frame.

Image 5.1: Visual representation of the lock's indoor and outdoor components during installation, illustrating how they fit together on a door.
5.3 Battery Installation
Open the battery compartment on the rear panel. Insert 4 new AA alkaline batteries, ensuring correct polarity. Close the compartment securely.
5.4 Tuya App Integration
To utilize smart features, download and install the Tuya Smart app on your smartphone.
- Download the "Tuya Smart" app from the App Store (iOS) or Google Play Store (Android).
- Register or log in to your Tuya account.
- Add the smart lock device by following the in-app instructions. This typically involves putting the lock into pairing mode (refer to the lock's specific pairing sequence, usually by pressing a reset button or holding a key on the keypad) and connecting via Bluetooth.
- Ensure your phone's Bluetooth is enabled during the pairing process.

Image 5.2: The smart lock connected to the Tuya app via WiFi, demonstrating remote control capabilities from a smartphone.
6. Operating Instructions
6.1 Unlocking Methods

Image 6.1: Visual guide demonstrating various ways to unlock the smart lock, including Tuya app, fingerprint, RFID card, password, key, and remote control.
- Tuya App Unlock: Open the Tuya Smart app, select your lock, and tap the unlock button. You can also generate temporary or permanent passwords for guests.
- Fingerprint Unlock: Place your registered finger on the fingerprint sensor until the lock unlocks. Ensure your fingerprint is properly registered in the app.
- Access Code Unlock: Enter your registered access code on the keypad, followed by the '#' key. For anti-peep security, you can enter random digits before and after your actual code.
- RFID Card Unlock: Present a registered RFID card to the card reader area on the lock.
- Remote Control Unlock: Press the unlock button on the provided remote control.
- Mechanical Key Unlock: Insert the mechanical key into the keyhole and turn to unlock. This is primarily for emergency access.
6.2 App Control and Management

Image 6.2: Screenshots of the Tuya app showing options for adding devices, controlling the smart lock, and generating remote dynamic passwords.
- User Management: Add, modify, or delete fingerprints, access codes, and RFID cards for different users.
- Remote Unlock: Unlock the door from anywhere via the app (requires a stable internet connection for the lock's gateway, if applicable).
- Dynamic Passwords: Generate one-time or time-limited passwords for visitors or service personnel.
- Activity Log: View a history of door openings, including the method used and timestamp.
- Settings: Adjust lock settings such as auto-lock time, volume, and language.
7. Maintenance
- Cleaning: Wipe the lock's surface with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace all 4 AA alkaline batteries when the low battery alert is triggered. Do not wait for the batteries to completely drain.
- Firmware Updates: Check the Tuya Smart app regularly for available firmware updates for your lock to ensure optimal performance and security.
- Mechanical Check: Periodically check that all screws are tight and the lock mechanism operates smoothly.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock does not respond. | Dead batteries, loose connection. | Replace batteries. Check cable connections. Use mechanical key or emergency USB power. |
| Fingerprint not recognized. | Finger is dirty/wet, sensor is dirty, fingerprint not properly registered. | Clean finger and sensor. Re-register fingerprint in the app. Try another registered finger. |
| Access code not working. | Incorrect code, anti-peep feature misunderstood. | Ensure correct code entry. Remember to press '#' after the code. Try entering random digits before/after the code if anti-peep is active. |
| App cannot connect to lock. | Bluetooth off, lock not paired, gateway offline (if applicable). | Ensure phone Bluetooth is on. Re-pair the lock with the app. Check Wi-Fi connection for the gateway. |
| Lock is loose after installation. | Screws not tightened, incorrect installation. | Tighten all mounting screws. Review installation steps to ensure correct assembly. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | GYS-3#ST+YK+TY+10IC Kou |
| Brand | FTes RFKits |
| Dimensions (Package) | 22.3 x 17 x 5.8 cm |
| Weight (Item) | 1.46 kg (3.22 pounds) |
| Power Source | 4 x AA Alkaline Batteries (not included) |
| Emergency Power | USB Interface |
| Voltage | 1.5 Volts (per battery) |
| Door Thickness Compatibility | Up to 60 mm |
| Connectivity Protocol | Bluetooth |
| Control Method | Application (Tuya Smart) |
| Special Features | App Control, Fingerprint, RFID, Keypad, Remote, Mechanical Key |
| Recommended Uses | Home, Hotel, Apartment, Garage Door, Storage Room, Warehouse, Cellar, Bedroom |
10. Warranty and Support
Your FTes RFKits Smart Electronic Digital Lock comes with the following:
- 45-Day Money-Back Guarantee: If you are not satisfied with your purchase.
- 1-Year Warranty: Covering manufacturing defects from the date of purchase.
- Free Lifetime Technical Support: For any questions or assistance you may need.
For technical support or warranty claims, please contact our customer service team:
Email: Service@acyitoo.com