Welcome to our store! 1. IMAGING: The round 2D code scanner module uses advanced image recognition algorithms to easily read all types of 1D and 2D barcodes. 2. SCANNING MODE: Round barcode reader module scanning mode for induction scanning, continuous scanning. 3. UART INTERFACE: The QR code scanner module has a built-in UART interface, making integration into various embedded devices simple and convenient. 4. HIGH ACCURACY: 1D code ≥5MIL, 2D code ≥10MIL, PCB material, long-term use without deformation, to ensure long-term stability. 5. WITH LED INDICATOR: The 2D code scanner module is equipped with a circular LED display for code scanning applications such as elevators. Item Type: Round 2D Codes Scanner Module Material: PCB Resolution: 640x480 Scanning Angle: Horizontal 70°, Vertical 55°, Rotate 360° Scanning Mode: Induction scanning, continuous scanning Accuracy: 1D code ≥ 5MIL; 2D code ≥ 10MIL Communication Interface: UART serial port (default 9600 8N1) LED Light: Blue: Code scanning Green: Successful decoding Working Voltage: 3.3V Working Current: 120mA Electrostatic Protection: Contact discharge ±6KV, air discharge ±12KV IP Protection: Positive IP54 Operating Temperature: -30 to +70°C Storage Temperature: -40 to +80°C Operating Humidity: 5%RH to 95%RH (non-condensing) 1 x Round 2D Codes Scanner Module 1 x Connection Line 1 x Cable Guaranteed Satisfaction: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory after-sales service.