Features: The most accurate andhigher safety studs detectors are specifically designed! The mostadvanced sensor technology is used to accurately and quickly locate rivets, metals, joists, pipes, and ACwires hiddens behind wall, floor, and ceilings. Whether you are a professional homeowner or a DIY enthusiasts, you can find a great use in this electronic screw scanner.detect rivets, metal, joists, pipes, and ACwires hiddens behind wall, floor, and ceilings. The wall scanner includes 5 different scannings molds, with a studs pattern used to locate and locate the center and edges of wood or metal studs, with depth of up to 0.5/1/1.5 inches; The metal modes can detect metal up to 3.2inches deep; ACmode detection of live unshielded ACwires up to 2 inches deep. Automatic calibration, ergonomic grip, comfortable to use before testing. Press and hold the scan button for 1-2 seconds to automatically calibrate, providing users with maximums reliability and accuracy. The ergonomic designs of this wall studs detector allows for fixation from any angles. LCDscreen upgrades designs displays the required studs materials and accurate positions of the studs,The digital studs scanner has a largedisplay and loud warnings. When materials are found, can detect the exact position of the object, and thisscreen will emit a beeps to tell you if you are close to the targets. Fast detection saves users time and effort, making tasks easier to complete. Specifications: Material: ABS Size: approx 6x14.5x3cm/2.4x6x1.2inch Metal depth indicator: Green back light Low pressure indicator Battery type: 9V battery (6F22)(Not included) Working current: