The WS-SMT series uses high-brightness LED indicator lights and advanced scanning technology to ensure clear identification in various lighting conditions. Each material tray position is equipped with an independently controllable LED light. When the operator scans the material number barcode, the system immediately illuminates the indicator light at the corresponding position, allowing the target material to be quickly located even in crowded material racks. The scanner supports multiple barcode formats, including 1D codes, 2D codes, and RFID tags, providing maximum flexibility.