7 in 1 wall scanner Including 1/2 inch (13cm) and 1.5 inch (38mm) scanning mode, it can detect the center position of woods in wood panel walls and plasterboard; Metal scan detects metal up to 2.36 inches (60mm); AC scan detects live up to 2 inches (51 mm), quickly finds metals, studs, joists, pipes and AC wires behind various floors and wall ceilings, except cement board walls Enhanced Additional Features The ability to measure moisture content of wood and building materials can be of great help in wood processing, water damage repair and home renovation. In addition, the temperature can be detected and displayed in 2 modes including and Precise positioning When looking for the location of the wood, hold the right tool up and down, parallel to the studs, stud finder with automatic calibration function, when you approach the target, there is will have an arrow on the LCD screen to indicate the position of the target, move in the direction of the screen arrow to locate accurately Easy to use Press ON / FF to start, press mode switch button, slowly slide the wall scanner over the surface of the test object, the LCD screen will light up and arrows guide you to slide. When you locate the center of the stud, the signal strength indicator will be full and the buzzer will sound, automatically after 3min. Turn off the power without any action. Need 2 * 9V 6F22 battery Including Digital LCD display The wall detector with graphic LCD backlight, which can show precise directions and display detection mode, signal strength, center pointing, low battery indication.With LCD backlight , it offers a clear appearance even in low light conditions, showing the exact location of detected materials and materials. Audio indication with a beep detector. Product description 7 in 1 wall scanner design with 7 scanning modes: The 13 cm (1/2 in) sweep mode locates the center and edges of the wood; The deep sweep locates the center and edges of the wood up to 1.5 inches (38 mm) deep; Metal scanning detects metal up to 60mm (2.36 inches) deep; AC scan detects live up to 2 inches (51 mm) deep; The ability to measure the moisture content of wood and building materials; Detect temperature, display temperature Detect temperature, display temperature How to use the button: 1.First, press ON / FF to start 2.mode switch button: 1 / 2inch stud for scanning metal or wood studs 13mm deep; 1 inch dowel for scanning a metal or wood stud with a depth of 25mm; 1 1/2 in. Stud to scan a metal or wood stud 38 mm deep; Metal mode is used to scan metal; AC mode is used to scan 220V AC unshielded live wire. 3.The power will be cut off automatically after 60 seconds without any operation. Please be careful when using Hold the tool straight up and down, parallel to the studs, and do not rotate the tool. Hold the tool flat against the wall and do not shake, tilt, or press hard as it slides slowly across the surface to be scanned. Avoid placing your other hand, or any part of your body, on the surface to be scanned.