... NC-TA Platform Type Needle Detector NC-TAOperation PanelFEATURES1. Newest streamlined appearance, with transparent ... and magnetic metal impurities in sewing products, such as: smallgarments, knitting products, sweaters, stockings, zipper, buttons, shoes, hats, toys, crafts ... Method Magnetic induction3.Detection sensitivity Max.80mm height by steel needle (ยข0.7*L25mm)4. Detection adjustment Hi & Lo5. ...