OEM Megapixels Metal Surface Barcode Scan 1D 2D QR Barcode Scanner Engine Module with Metal Housing for Industrial Application DPM Barcode Scanning for Factory Traceability HW-1220E Scan Engine with Anti-Reflection Lighting - Solve DPM code reading on metal and plastic surfaces with advanced tri-color LED technology, 120FPS CMOS sensor, and laser aiming for MES traceability, incoming inspection, and production tracking. Solving Reflective Surface Challenges Reading DPM codes