1.Hand-held 1D&2D Barcode Scanner 2.COMS sensor,Supports 1D barcode and 2D codes (QR ... , PDF417,Maxicode, etc.) CSN-200 Hand-held 1D&2D Barcode Scanner with RS232/USB Port Product FeaturesDurable and Easy to OperateErgonomics design ... EMC Class B CSN-200 Hand-held 1D&2D Barcode Scanner with RS232/USB Port