Bartech Systems and Automations [P] Ltd. Is the manufacturer of Barcode Scanner with 25"Depth of Field, model QucikScan-6500. The Barcode Scanner with 25"Depth of Field provides 450 scans per sec. The Barcode Scanner with 25"Depth of Field has 630nm visible red diode. The Barcode Scanner with 25"Depth of Field is available with keyboard, RS -232 and USB.