Feature:1. IMAGE RECOGNITION: The Round 2D codes scanner module uses advanced image recognition algorithms to easily read all types of 1D and 2D barcodes.2. SCANNING MODE: Round barcode scanner reader module scanning mode for induction scanning, continuous scanning.3. UART INTERFACE: The QR code scanner module has an on board UART interface, which makes integration into various embedded devices easy and convenient.4. HIGH ACCURACY: 1D code 5MIL, 2D code 10MIL, PCB material, long time use without deformation, so as to ensure long term stability.5. WITH LED INDICATOR: The 2D codes scanner module is equipped with a circular LED display for code scanning applications such as elevators.Specification:Item Type: Round 2D Codes Scanner ModuleMaterial: PCBResolution: 640x480Scanning Angle: Horizontal 70, Vertical 55, Rotate 360Scanning Mode: Induction Scanning, Continuous ScanningAccuracy: 1D Code 5MIL; 2D Code 10MILCommunicate Interface: UART Serial Port (Default 9600 8N1)LED Light: Blue: Code ScanningGreen: Successful DecodingWorking Voltage: 3.3VWorking Current: 120mAElectrostatic Protection: Contact Discharge 6KV, Air Discharge 12KVIP Protection: Positive IP54Operating Temperature: -30 to +70CStorage Temperature: -40 to +80COperating Humidity: 5%RH to 95%RH (Non Condensing).Package List:1 xRound 2D Codes Scanner Module1 x Connecting Line1 x Cable