1. Stable function. 2. Compatible with A, D, E probe. 3 ... defects such as surface cracks, dark crack, crack open the folder. It provides windows in Chinese user interface ... inner ring, Gear Blanks, Ring-shaped metal parts , Auto Parts2,Brass, steel, stainless steel pipe, welded pipe, aluminum ... Detection such as Condenser tubes, air conditioner pipe, auto Tubing5 ,Be suitable for all kinds of Metal wire ...