Features: 1. QR Code Scanner Module, QR Code Recognition, Mini Size, Screen Scanner 2. Barcode Scanner Module(D) Is A Highly-Integrated, Small-Sized Circular Qr Code Scanner Module With Circular Led Display, Suitable For Elevator And Other Code Scanning Application Scenarios. 3. The Module Adopts Advanced Image Recognition Algorithms And Can Easily Read All Kinds Of 1d And 2D Barcodes. 4. The On-Board Uart Interface Makes It Easy To Integrate Into Various Embedded Devices. 5. Professional Installation Is Required To Avoid Product Damage. 1. Resolution: 640 x 480 2. Scanning Angle: Horizontal 70, Vertical 55, Rotation 360 3. Scanning Mode: Induction Scanning, Continuous Scanning 4. Accuracy: 1D Code 5mil; QD Code 10MIL 5. Communication Interface: Uart Serial Port (Default 96008N1) 6. Led Light: Blue: Scanning Code; Green: Decoding Successful 7. Working Voltage: 3.3V 8. Working Current: 120mA 9. Electrostatic Protection: Contact Discharge Soil 6kv, Air Discharge 12KV 10. Ip Protection: Front IP54 11. Working Temperature:-30-+70C 12. Storage Temperature:-40-+80C 13. Working Humidity: 5%RH~95%RH (Non-Condensing) Color: As shown (cable color is random, Not accepting designation) Material: ABS Package Contents: 1 x Barcode Scanner Module (D) 1 x 6PIN To Terminalless Cable 1 x 6PIN To Loose Head Cable Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.