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The professional QR-703 Wiegand TCP/IP reader from Spreest enables quick user identification using QR codes, barcodes, 2D codes, and 13.56 MHz Mifare IC cards.
The device is designed for integration with access control systems, turnstiles, time and attendance recording (T&A) systems, and modern building automation systems.
Thanks to Wiegand and Ethernet TCP/IP support, it can work with both classic access controllers and proprietary network applications.
Key features
1. Multiple identification methods – The reader supports QR codes, 2D codes, barcodes, and 13.56 MHz Mifare IC cards.
2. Wiegand and TCP/IP communication – The device can be integrated with access controllers and network systems.
3. Multiple operating modes – The reader supports TCP Client, TCP Server, UDP Client, UDP Server, HTTP Client, MQTT Client, and Modbus Gateway.
4. Easy configuration – Parameters can be set via Ethernet or UART port, depending on installation needs.
5. DHCP or static IP address – The device allows working with dynamic or manually set network addresses.
6. Fast reading – The reader efficiently recognizes codes and cards, facilitating daily use of the access system.
7. Flexible integration – Support for multiple communication protocols allows the device to be adapted to various environments and installations.
8. Connection monitoring – Heartbeat packet support allows monitoring the correctness of communication with the master system.
9. Firmware update – The ability to update the software allows access to new device functions.
Integration with access control systems
The reader can cooperate with:
- Wiegand access controllers
- TCP/IP access control systems
- Turnstiles (tripods)
- Gates and entrance doors
- Electric strikes
- Electromagnetic locks
- Time and attendance (T&A) systems
- Hotel systems
- Ticketing systems
- Proprietary applications using TCP, UDP, HTTP, MQTT, or Modbus
Example of operation
- The user presents a QR code or Mifare proximity card.
- The reader reads the identifier.
- Data is sent to the access controller or master system.
- The system verifies user permissions.
- The passage, door, gate, or turnstile is unlocked.
Applications
- Offices and corporate buildings – Access control for employees, guests, and time and attendance recording.
- Residential estates and communities – Control of access to buildings and common areas.
- Hotels and apartments – Guest access using QR codes.
- Schools and universities – User identification and access management.
- Warehouses and industrial facilities – Access control to production and storage areas.
- T&A systems – Recording employee entry and exit using cards or QR codes.
- Building automation – Integration with building management systems and proprietary applications.
- Ticketing and record-keeping systems – Verification of QR codes and identification cards.
Reader elements
- QR code scanning module
- Barcode scanning module
- Mifare IC card scanning module
- Mounting holes
- Mounting frame
- Connection cable input with RJ45 plug
- 12 V DC power input
- Factory reset button
- Status indicator LED
Description of communication cables
- Red – VCC / +12V
- Black – GND
- Green – D0 / DATA 0
- White – D1 / DATA 1
- Blue – LED / LED-IN
The device is also equipped with an RJ45 Ethernet connector for network communication.
Connection diagram
- Red – VCC / +12V
- Black – GND
- Green – D0 / DATA 0
- White – D1 / DATA 1
- Blue – LED / LED-IN
The device is also equipped with an RJ45 Ethernet connector for network communication.
Technical specification
- Power supply: DC 12 V
- Operating current: < 50 mA
- Standby current: 30 mA
- Card frequency: 13.56 MHz
- Card type: Mifare IC / MF IC
- Scanning type: QR code, 2D code, barcode
- Card read distance: 3–5 cm
- QR code read distance: 5–30 cm
- Read speed: < 200 ms
- Communication: Wiegand, TCP/IP, Ethernet RJ45, UART
- Supported protocols: TCP, UDP, HTTP, MQTT, Modbus
- IP addressing: DHCP or static IP address
- Operating temperature: -40°C to +85°C
- Operating humidity: 10%–90% RH, non-condensing
- Material: Metal + Tempered glass
- Dimensions: 86 × 10 × 86 mm
- Weight: 148 g
Kit includes
- 1x QR-703 Wiegand TCP/IP QR code reader
- 1x Connection cable with RJ45 plug
- 1x Power cable
- 1x Mounting accessories
NOTE:
The reader is an identification device designed to work with access control systems. The method of opening a door, gate, or turnstile depends on the access controller or master system used.








