Feature Highlights:1. Auto-Calibration for Reliability: This wall scanner features auto-calibration for maximum reliability and accuracy. Simply place it on the target wall in stud/deep mode, or in the air for AC/metal mode, and it's ready to go with an easy-to-read LCD display.2. Advanced Sensor Technology: Equipped with advanced sensor technology, it quickly and accurately locates studs, wood, metal, and live AC wires behind walls, floors, and ceilings.3. Intuitive LCD & Audio Guidance: When a material is detected, the clear LCD display shows the direction, while audible beeps indicate signal strength, telling you if you're getting closer. This makes finding targets fast and saves you time.4. Quick & Easy Location: Find hidden wood studs, metal beams, pipes, and live wires quickly and easily. It's your go-to tool for safe drilling and hanging items like TVs or cabinets.5. Versatile & Safe Drilling Aid: Perfect for various DIY projects, this stud finder helps you locate concealed objects safely, preventing potential damage or hazards when installing fixtures around your home.Product Details:This 4-in-1 wall scanner takes the guesswork out of DIY. Its auto-calibration ensures accurate readings every time. Using advanced sensors, it detects studs, wood, metal, and live AC wires up to different depths. The LCD screen and audio cues guide you right to the target, making it easy for anyone to use. It's the reliable helper you need for safe drilling when mounting shelves, TVs, cabinets, or pictures.Specifications: Item Type: Wall Scanner Material: Plastic Weight: Approx. 204g / 7.2oz Size: Approx. 17 x 7.5cm / 6.7 x 3.0in Power: 1 x 9V Battery (Not Included) Function: Detects wall studs, metal, live AC wires, and wood. Scan Modes & Depth: Stud Scan: Up to ~19mm / 0.7in deep Depth Scan: Up to ~38mm / 1.5in deep Metal Scan: Up to ~60mm / 2.4in deep AC Scan: Up to ~51mm / 2.0in deep Package Includes: 1 x Wall Scanner, 1 x English User Manual (Battery Not Included)