OBO HANDS F20-K WiFi Tuya Fingerprint Access Controller User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your OBO HANDS F20-K WiFi Tuya Fingerprint Access Controller. This device offers multiple access methods including fingerprint, RFID card, password, and remote control via the Tuya Smart App, designed for secure and convenient access management.

2. Package Contents

• F20-K WiFi Tuya Access Control Keypad
• Mounting Screws and Wall Plugs
• RFID Key Fobs/Cards (quantity may vary based on purchased variant)
• User Manual (this document)

3. Product Overview

The OBO HANDS F20-K is a robust, IP68 waterproof access control keypad suitable for outdoor installation. It features a blue backlight for visibility in low light and supports dual-frequency RFID (125KHz and 13.56MHz).

Figure 1: F20-K Access Control Keypad with included accessories and app interface.

3.1 Key Features

• Multiple Access Modes: Fingerprint, RFID Card, Password, Tuya App, Remote Control.
• IP68 Waterproof Rating: Suitable for outdoor use in rain and storm.
• Dual-Frequency Operation: Supports 125KHz and 13.56MHz RFID cards.
• Tuya Smart App Integration: Remote unlock, user management, temporary passwords, access logs.
• Blue Backlight Keypad: Digits are clearly visible in the dark.
• Wiegand (WG26/WG34) Interface: For integration with other access control systems.
• Doorbell Function Support.

3.2 Dimensions

Figure 2: Device dimensions (Front: 70mm W x 138mm H x 18mm D; Back: 50mm W x 98mm H).

4. Specifications

5. Setup

5.1 Physical Installation

1. Choose a suitable mounting location, ensuring it is flat and secure. For outdoor installations, ensure the back of the device is properly sealed to prevent water ingress, as noted by some users.
2. Use the provided mounting screws and wall plugs to securely attach the keypad to the wall.
3. Ensure all wiring connections are made before final mounting.

5.2 Wiring

The F20-K requires a DC 12V power supply and connects to an electric lock. The device has multiple wires for power, lock control, Wiegand interface, and doorbell. It is highly recommended to consult a qualified electrician for wiring to ensure correct and safe installation.

Typical wiring connections include:

• Red: DC 12V Power (+)
• Black: Ground (GND) / DC 12V Power (-)
• Yellow/White: NO (Normally Open) or NC (Normally Closed) for electric lock
• Blue/Green: COM (Common) for electric lock
• Purple/Orange: Wiegand Data (D0, D1)
• Grey: Doorbell

Warning: Incorrect wiring can damage the device or connected equipment. Always ensure power is off before making any connections.

5.3 Tuya Smart App Download and Setup

1. Download Tuya App: Scan the QR code provided in the product packaging or search for "Tuya Smart" in your device's App Store (iOS) or Google Play Store (Android).
2. Install and Register: Follow the on-screen instructions to install the app and register for a new account or log in if you already have one.
3. Enable Connectivity: Ensure your smartphone's Wi-Fi and Bluetooth are turned on.

Figure 3: Tuya Smart App interface examples for device and user management.

5.4 How to Add Access Control Keypad to Tuya Smart APP

1. Turn on the Tuya APP.
2. Turn on Wi-Fi and Bluetooth on your phone.
3. On the access control keypad, enter: #* 123456 # 68 #
4. In the Tuya App, click "Add Device".
5. Click "Add" (the app should detect the device nearby).
6. Enter your Wi-Fi password.
7. Click "Next".
8. Click "Done" once the device is successfully added.

6. Operating Instructions

6.1 How to Add User with Tuya APP

Once the keypad is connected to the Tuya App, you can manage users easily.

1. Add Member:
   • Click "Member manage".
   • Click "+" to add an administrator or ordinary member.
2. Add Fingerprint:
   • Click "Fingerprint Add" to add a fingerprint.
   • Place the finger on the sensor three times as prompted.
3. Add Password:
   • Click "Code Add".
   • Enter a 6-digit code.
   • Click "Save".
4. Add Card:
   • Click "Card Add".
   • Swipe the RFID card on the access control keypad.
   • Click "Done".
5. Add a Remote Transmitter (supports 315MHz version only):
   • Click "Telecontrol Add".
6. Add Temporary Code (valid for 6 hours and can only be used once):
   • Click "Temporary code".
   • Click "Once".
   • Click "Save".
   • You can share the password via WeChat / Email / Message.

Figure 4: Various methods to unlock the F20-K Access Controller.

6.2 How to Program on the Access Control Keypad (without Tuya APP)

The default programming password is 123456.

6.2.1 Adding Users/Cards/Remotes

• Add Management Card ("Add Card"): #* 123456 # 61, swipe card, press # **
• Add Remote Control (2 Methods):
  1. Swipe management card "Add Card", press remote control, press #**
  2. Press #* 123456 # 5, press remote control, press #** (Supports 315MHz version only)
• Add Fingerprint (3 Methods):
  1. Swipe management card "Add Card", place fingerprint three times, press #**
  2. Press #* 123456 # 5, place fingerprint three times, press #**
  3. Press #* 123456 # 5, input user code (10000-60000), press #, place fingerprint three times, press **
• Add RFID Card (4 Methods):
  1. Swipe management card "Add Card", swipe card, press #**
  2. Press #* 123456 # 5, swipe card, press #** (For multiple cards, continue to swipe card, press ** to exit programming)
  3. Press #* 123456 # 5, input user code (1-8000), press #, swipe card, press **
  4. Press #* 123456 # 2, input 10 digits card number, press #**
• Add Password: #* programming password # 3 input 6 digits password (not start with 0) # **
  Example: #* 123456 # 3 147890 # ** (Then input 147890# to unlock)
• Set RFID card + Password to unlock: #* programming password # 65 swipe card, input password # **
  Example: #* 123456 # 65 swipe card 123123 # ** (Then swipe card plus input 123123# to unlock)

6.2.2 Deleting Users/Cards/Remotes

• Delete Management Card ("Delete Card"): #* 123456 # 62, swipe card, press # **
• Delete Remote Control (2 Methods):
  1. Swipe management card "Delete Card", press remote control, press #**
  2. Press #* 123456 # 81, press remote control, press #**
• Delete a Single Fingerprint (3 Methods):
  1. Swipe management card "Delete Card", place fingerprint, press #**
  2. Press #* 123456 # 81, place fingerprint, press #**
  3. Press #* 123456 # 83, input user code, press #**
• Delete a Single Card (4 Methods):
  1. Swipe management card "Delete Card", swipe card, press #**
  2. Press #* 123456 # 81, swipe card, press #**
  3. Press #* 123456 # 82, input 10 digits card number, press #**
  4. Press #* 123456 # 83, input user code, press #**
• Delete Private Password: #* programming password # 84 password # **
  Example: #* 123456 # 84 147890 # **
• Delete All Cards: #* 123456 # 9 # 369 # **
• Delete All Fingerprints: #* 123456 # 9 # 709 # **
• Delete All Remote Control: #* 123456 # 9 # 147 # **
• Delete All Password User: #* 123456 # 9 # 108 # **
• Delete All RFID Card + Password User: #* 123456 # 9 # 258 # **
• Delete All User (fingerprints, passwords, cards): #* 123456 # 9 # 123 # **

6.2.3 System Settings

• Modify Programming Password: Default is 123456. To change to 456789: #* 123456 # 1 456789 # **
• Restore Factory Settings: Press 9876543210 #. This resets the programming password to default 123456. You can then use this default password to add or delete users.

6.3 Additional Functions

• Switch Voice Prompts to English: #* 123456 # 661 #
• Switch Voice Prompts to Chinese: #* 123456 # 660 #
• Set Keypad as an Access Controller (Reading Head Input): #* 123456 # 631 # **
• Set Keypad as a Card Reader (Reading Head Output): #* 123456 # 630 # **
• Set Keypad as a WG Reader:
  • WG26 mode: #* 123456 # 6626 # **
  • WG34 mode: #* 123456 # 6634 # **
• Data Copying (only supports card and password):
  1. Press #* 123456 #. The buzzer beeps twice, the green light turns on, entering setting mode.
  2. On the access control keypad B (duplicate device): Press 9 # 789 #
  3. On the access control keypad A (Main device): Press 9 # 135 #
• Set Door Opening Time: #* programming password # 7 input digits from 1-9 **
  Example: #* 123456 # 7 2 ** (1 represents 2 seconds, 2 represents 4 seconds, 9 represents 18 seconds)
• Turn On or Off the Normally Open Mode: #* 123456 # 87 # **
• Set Backlight Long On Mode: #* 123456 # 881 # **
• Set Backlight Long Off Mode: #* 123456 # 880 # **
• Add One-Time Password: #* 123456 # 64, input 6 digits password, press # **
• Delete One-Time Password: #* 123456 # 9456 # **

7. Maintenance

• Cleaning: Use a soft, damp cloth to clean the keypad surface. Avoid abrasive cleaners or solvents that could damage the finish or electronics.
• Fingerprint Sensor: Keep the fingerprint sensor clean and dry for optimal performance.
• Firmware Updates: Periodically check the Tuya Smart App for any available firmware updates for your device to ensure optimal performance and security.
• Wiring Inspection: For outdoor installations, periodically inspect wiring connections for any signs of wear or damage, especially if exposed to harsh weather conditions.

8. Troubleshooting

• Device Not Responding:
  • Check the DC 12V power supply connection.
  • Ensure all wiring is secure and correct.
• Cannot Connect to Tuya App / Change Wi-Fi SSID:
  • Ensure your Wi-Fi network is 2.4GHz (5GHz is not supported).
  • Put the device into pairing mode (#* 123456 # 68 #) and try adding it again in the Tuya App.
  • Ensure your phone's Bluetooth and Wi-Fi are enabled.
• Fingerprint Not Recognized:
  • Ensure your finger and the sensor are clean and dry.
  • Try re-registering your fingerprint.
• RFID Card Not Working:
  • Ensure the card is correctly registered.
  • Verify the card frequency matches the device's supported frequencies (125KHz or 13.56MHz).
• How to Reset the Device (Factory Reset):
  • Press 9876543210 # on the keypad. This will restore the programming password to 123456 and clear all user data.

9. User Tips

• App for Easy Setup: Many users find the Tuya Smart App makes programming and user management very straightforward and easy.
• Outdoor Installation Note: While the device is IP68 waterproof, ensure the back panel where wires exit is properly sealed during outdoor installation to prevent any potential water ingress.
• Efficiency: The system is generally considered practical and efficient for daily use.

10. Warranty and Support

For warranty information and technical support, please refer to the seller's policy or contact the point of purchase. Keep your purchase receipt as proof of purchase.