Bartech Systems and Automations [P] Ltd. Is engaged in manufacturing Barcode Scanner with12" Depth of Field, model ZEBEX Z-3051. The Barcode Scanners with12" Depth of Field can 500 scans per sec. The Barcode Scanners with12" Depth of Field have 650nm visible Laser Diode. The Barcode Scanners with12" Depth of Field are also available with keyboard, RS -232 and USB.