Detector Wall Scanner ①. This product can detect the central position of the wood rod in the wall, as well as the position of the metal and wires. ②. The wood rod detection edge display function has three detection levels: the first level can detect the center of the wood rod, and the wall thickness is less than 1/2 inch (13mm); the second level can detect the center of the wood rod, and the wall thickness is less than 1 inch (25mm); the third level can detect the center of the rod and the wall thickness is less than 1 1/2 inches (38 mm). ③. This product can detect iron, lead, aluminum and other metals in the wall, and the detectable range is that the wall thickness is less than 2.36 inches (60mm). ④. This product can detect live wires in the wall, and the detection range is within 2 inches (51mm) of the wall thickness. ⑤. All ...