1. Introduction
Thank you for choosing the XSDTS F3S Smart Door Lock. This advanced security device offers multiple unlocking methods including fingerprint, password, IC card, Bluetooth app, and traditional mechanical keys, providing convenience and enhanced security for your home or apartment. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and longevity of your smart lock.

XSDTS Smart Door Lock, available in black and white, featuring Tuya Smart and Bluetooth connectivity.
2. Product Features
- Multiple Unlocking Methods: Unlock using fingerprint, password, IC card, Bluetooth app (Tuya Smart), or mechanical key.
- Fast Fingerprint Recognition: Fingerprint recognition rate up to 99.8%, unlocking in approximately 0.5 seconds with a false recognition rate of less than 0.001%. Supports up to 150 unique fingerprints.
- Smart App Control: Manage your lock remotely via the Tuya Smart app (iOS and Android compatible). Set temporary passwords for guests or housekeepers.
- Emergency Power: Equipped with a USB interface for emergency charging in case of battery depletion.
- Reversible Handle: Designed to fit both left-handed and right-handed doors.
- Wide Application: Suitable for various door types including steel, wooden, brass, and stainless steel doors, ideal for homes, offices, apartments, and workshops.

The XSDTS F3S Smart Lock offers multiple unlocking methods for convenience and security.
3. Package Contents
Please check the package to ensure all items are present:
- Smart Lock Handle (Front and Rear Panels)
- Mechanical Keys (x2)
- IC Cards (x2)
- Latch Mechanism
- Strike Plate and Strike Box
- Mounting Screws and Spindle
- Screwdriver
- XSDTS Tags

All components included in the XSDTS F3S Smart Door Lock package.
4. Specifications
| Feature | Detail |
|---|---|
| Brand Name | XSDTS |
| Model Number | F3S |
| Power Source | 4 AAA Dry Batteries (not included) |
| Emergency Power | USB Interface |
| Protection Level | No Waterproof |
| Fit Door Thickness | 35-70mm |
| Material | Aluminium Alloy |
| Connectivity | Bluetooth |
| Unlocking Methods | App, Bluetooth, Mechanical Keys, Card, Password, Fingerprint |
| Special Features | Support Gateway (sold separately for remote WiFi control) |
| Installation Method | Drilling installation |
| Handle Direction | Direction Reversible |
| Suitable Door Type | Steel Door, Wooden Door, Brass Door, Stainless Steel Door, Other |
| Certification | CE |
| Smart Home Platform | Tuya |
| Dimensions (Front Panel) | 65mm (W) x 164mm (H) |
| Product Weight | 0.716 kg |

Detailed dimensions and components of the XSDTS F3S Smart Door Lock.
5. Installation and Setup
The XSDTS F3S Smart Door Lock is designed for easy installation on standard doors, requiring no complex wiring or drilling beyond standard door lock preparation. Please ensure your door thickness is between 35-70mm.
5.1. Handle Direction Adjustment
The handle direction is reversible to accommodate both left and right-handed doors. Refer to the diagram below to adjust the handle if necessary before installation.

Adjusting the handle direction for left or right opening doors.
5.2. Mechanical Installation Steps
Follow these steps for physical installation:
- Insert Latch: Insert the latch mechanism into the door edge. Secure it with screws, connecting it to the front door handle.
- Pass Connecting Wire and Spindle: Carefully pass the connecting wire and spindle through the latch mechanism.
- Open Battery Compartment and Pass Power Cord: Open the battery compartment on the interior handle. Pass the power cord from the exterior handle through the door and connect it to the interior handle's circuit board.
- Secure Handles: Align the exterior and interior handles. Tighten the outer screw, then turn the handle down 45 degrees and tighten the inner screw. Finally, cover the battery box.

Step-by-step diagram for installing the smart door lock.
5.3. App Setup (Tuya Smart)
To enable smart features and remote control, set up the lock with the Tuya Smart app:
- Download the Tuya Smart app from your device's app store (iOS or Android).
- Create or log in to your Tuya account.
- Add the smart lock device within the app. Follow the on-screen instructions to pair the lock via Bluetooth.
- For remote WiFi control, a USB BLE Gateway (sold separately) is required. Connect the gateway to your WiFi network and ensure it is within 8 meters of the smart lock for optimal connection.

Diagram illustrating the setup process for app control and optional WiFi gateway.
6. Operating Instructions
The XSDTS F3S Smart Door Lock offers several convenient ways to unlock your door:
6.1. Unlocking Methods
- Fingerprint Unlock: Place your registered finger on the fingerprint sensor. The lock will unlock in less than 1 second upon successful recognition.
- Password Unlock: Enter your programmed password on the keypad, followed by the '#' key.
- IC Card Unlock: Present a registered IC card to the card reader area on the lock.
- Bluetooth App Unlock: Use the Tuya Smart app on your smartphone to send an unlock command via Bluetooth.
- Mechanical Key Unlock: In case of emergency or battery failure, use the provided mechanical key to unlock the door.
Video demonstrating the various unlocking methods: fingerprint, password, card, Bluetooth app, and mechanical key.
6.2. Adding Users (Fingerprints, Passwords, Cards)
Refer to the Tuya Smart app's instructions for adding and managing users. The app provides a user-friendly interface for registering new fingerprints, setting up unique passwords, and pairing IC cards.
6.3. Remote Control (with Gateway)
If you have installed the USB BLE Gateway, you can remotely unlock or lock your door from anywhere via the Tuya Smart app. Ensure the gateway is powered and within 8 meters of the smart lock for a stable connection.

Control your smart lock remotely using the Tuya app with an optional gateway.
7. Maintenance
7.1. Battery Replacement
The smart lock requires 4 AAA dry batteries (not included). The lock features a low battery reminder function. When the battery is low, replace all four batteries promptly. To replace, open the battery compartment on the interior handle, remove old batteries, insert new ones with correct polarity, and close the compartment.

Battery compartment and emergency power options.
7.2. Emergency Charging
If the batteries completely drain before replacement, you can use the USB interface on the exterior handle for emergency power. Connect a power bank or USB charger to this port to temporarily power the lock and gain entry.
7.3. Cleaning
Clean the lock's exterior surfaces with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and electronic components. Keep the fingerprint sensor clean and free of debris for optimal performance.
8. Troubleshooting
- Lock not responding: Check battery level. If low, replace batteries or use emergency USB power.
- Fingerprint not recognized: Ensure your finger is clean and dry. Try re-registering your fingerprint if the issue persists.
- Password not working: Double-check the entered password. Ensure the keypad is clean and responsive.
- IC card not working: Ensure the card is correctly registered and presented to the sensor.
- App unlock not working: Ensure Bluetooth is enabled on your phone and the lock. If using a gateway, verify its power and proximity (within 8 meters) to the lock. Check app connectivity.
- Handle feels loose: Re-tighten the mounting screws as per the installation instructions.
9. User Tips
- Check Door Compatibility: Before purchasing or installing, carefully review the product dimensions and installation diagrams to ensure compatibility with your door's existing holes and thickness (35-70mm).
- Register Multiple Fingerprints: For convenience and redundancy, register fingerprints from different fingers and angles.
- Utilize Temporary Passwords: For visitors or service providers, use the Tuya app to generate temporary passwords that expire after a set time or number of uses.
- Keep Mechanical Keys Accessible: Always keep the mechanical keys in a safe, accessible location outside the property for emergency access.
- Monitor Battery Life: Pay attention to the low battery warning to avoid being locked out. Have spare AAA batteries on hand.
10. Warranty and Support
The XSDTS F3S Smart Door Lock is CE certified, ensuring it meets European safety, health, and environmental protection requirements.
For technical support, troubleshooting assistance, or warranty inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.





