Features: Quickly detect the center position of the wooden stem. Digital LCD display, easy to read. The center of the wooden stem can be detected, and the wall thickness is 1/2 inch (13 mm). Detectable wood stem center with a wall thickness of 1 inch (25 mm). Detectable wood stem center with wall thickness of 1 1/2 inches (38 mm). Detects iron, lead, aluminum and other metals with a wall thickness of 2.36 inches (60 mm). Detectable live wires in the wall, the wall thickness is within 2 inches (51 mm). All detection functions have automatic correction function, for maximum reliability to the user. All detection functions have AC alert function. Measure the edge of the wooden stem file. With low voltage display. Wood stem center detector with probe metal and voltage function. Locate metal studs, pipes, steel bars, walls, joists behind floors and ceilings, and the edges and center of live wires quickly. Specifications: Model: TH403 Color: Grey Shell Material: ABS Power Supply: 6F22 9V battery (Not included) Measuring Range: 13-60MM Measurement Accuracy: 13-60MM Operating Temperature: 0-40 Item Weight: 168g / 5.92oz Item Size: 164*75*34mm / 6.45*2.95*1.33in Package Weight: 233g / 8.21oz Package Size: 185*85*45mm / 7.28*3.34*1.77in Note: Metal detector only, other accessories in the picture are not included. Due to manual measurement, there may be deviation. Due to lighting, the picture and material object may slightly differ in color, please in kind prevail. Packing List: 1 * Metal Detector 1 * User Manual