Barcode Scanner USB General Global Image Transmission IP54 Dustproof Waterproof Ergonomic QR Barcode Reader Item Type: Barcode Scanner Material: ABS Sensor: CMOS Resolution: 640 x 480 Pixels Field of View: ±42°, ±32° (horizontal, vertical) Decoding Type: 1D: EAN 13, EAN 8, UPC A, UPC E, ISSN, ISBN, CodaBar, Codeing 128, Code93, ITF 14, ITF 6, Interleaved 2 of 5, Industrial 2 of 5, GS1 Databar (RSS ), Coding 39, Coding 11, MSI Plessey, Etc 2D: QR Coding, PDF417, Micro PDF417, Micro QR, Aztec, etc Setting Method: Manual (scan the setting barcode in turn) Sign Contrast: ≥15% Reading Accuracy: One Dimensional Coding 3MIL (Code39, CODE128, EAN13), Two Dimensional Coding 5MIL (QR, DM, PDF417) Prompt Mode: Buzzer, LED Indicator Trigger Mode: Manual Typical Reading Depth of Field: QR (15mil): 30 to 210mm/1.2 to 8.3in QR Payment Coding (mobile phone coding): 80 to 550mm/3.1 to 21.7in PDF 417 (6.7mil): 50 to 120mm/2.0 to 4.7in EAN 13 (13mil): 50 to 280mm/2.0 to 11.0in Coding 39 (8mil): 30 to 190mm/1.2 to 7.5in Coding 128 (15mil):80 to 320mm/3.1 to 12.6in