Bartech Systems and Automations [P] Ltd. Manufactures Barcode Scanner with 680nm visible Laser Diode, model QuickScan-6000. The Barcode Scanner with 680nm visible Laser Diode provides 42 scans per sec. The Barcode Scanner with 680nm visible Laser Diode is available with 16" depth of field. The Barcode Scanner with 680nm visible Laser Diode has keyboard, RS -232.