LCD display Walk-Through Metal Detector with Detect all kinds of metal functionLCD display Designed in modularization Detect LCD display Designed in ... Detect all kinds of metal, including stainless steel, iron, manganese, zinc, alloy, etc. Composite circuit design. uses infrared and has strong immunity ... frame216cmX82cmX50cm Inner frame200cm(H)X60cm(W)X50cm LCD Walk-Through Metal Detector