Superior Safety & Accuracy : Equipped with Smart Micro-Sensor Chip for Precise Detection of Metal, Studs, Joists, Pipes, and Live AC Wires Behind Walls, Floors, and Ceilings, Ensuring Your Safety Before Drilling. Visual Display & Audio Alert : Graphic LCD Screen Displays Detected Objects Visually with Clear Indications of Left, Right, or Center, Backlit for Visibility in Dark Conditions, Accompanied by Audio Alarms for Precise Location Identification. Wide Application : Quickly Locate Wood, Metal, and AC Wires Hidden in Walls, Floors, and Ceilings, Ideal for Installing TVs, Picture Frames, Cabinets, Shelves, and Other Decorative Items Safely. Always Wire Warning : Designed with Wire Warning Detection up to 2 Inches Deep, Always Active in Any Mode for Safety from AC Power Cords. Multiple 5-in-1 Detection : Adapt to Different Wall Materials and Thicknesses, Accurately Identifying Studs, Wires, and Metals up to 38mm in Diameter, Essential for Home Improvement Projects. Engineered for precision, this Wall Scanner delivers unparalleled accuracy in detecting hidden structures within your walls, making it a must-have tool for DIY enthusiasts and professionals alike.