EBayUse state-of-the-art sensor technology to accurately and quickly locate metal pipes, fire wires, studs, wood framing, rebar and support beams hidden behind walls, floors and ceilings. Auto-calibration and ergonomic holding, comfortable to use, please press and hold the scan button for 1-2 seconds before testing. Automatic calibration provides users with maximum reliability and accuracy. The ergonomic design of this wall stud detector allows it to be fixed from any angle Wall Scanner includes five different scanning modes for metal pipes, fire wires, studs, wood frames, rebar and brackets, as well as ceilings, objects deeply embedded behind walls. Bolt mode can detect wood beams and joists in drywall up to 1.5 Inches. Metal mode can detect pipes up to 3 inches long. Depth mode detects wood and metal parts up to 3 inches, while 85 to 240 VAC can be used on voltage and live wires up to 2 inches Professional design, first-class quality - Foley has been committed to the research and development of stud detectors for many years, and has a professional team and mature production technology. This stud joist finder wall detector quickly locates metal wood AC wires hidden in your home's walls, floors, and ceilings, helping you find the exact studs when installing TVs, cabinets, garage racks, and mor LCD Screen Upgraded Design, Shows Required Stud Material and Accurate Location of Studs - The digital stud scanner has a large LCD screen and loud warning, which can detect the exact location of the object. When material is found, the LCD beeps to tell you if it's close to your target. Rapid detection saves users time and effort, making task completion easier FOLAI Stud Finder Wall Scanner is a versatile 4-in-1 tool designed to make your DIY projects and home renovations easier. With its advanced electronic sensors, it can accurately detect wood, metal, and live AC wires behind walls, floors, and ceilings.