- MAIN PURPOSE: This stud finder is designed to accurately detect wall nails, metal pipes, and electrical wires, preventing damage to your home's wiring during decoration and remodeling projects. - IMPROVE INSTALLATION EFFICIENCY: Quickly locate hidden metal or wooden AC cables within walls and floors, ensuring precise installation of TVs, cabinets, and other fixtures without the risk of hitting obstacles. - POWERFUL DETECTION FUNCTION: The stud finder provides audible alerts and visual signals when it detects wall nails, metal pipes, or wires, keeping you informed and helping to avoid costly damage. - EASY TO USE: The wall scanner can detect the edges of wooden or metal nails at a depth of up to 20 mm. It operates directly against the wall without the need for additional tools, making it user-friendly for everyone. - USE SCENARIOS: 1. When mounting a flat-screen TV, easily find studs and avoid hidden wires to secure a safe installation. 2. During home renovation, locate plumbing and electrical lines to prevent accidental damage when drilling or nailing. 3. For DIY projects, quickly scan walls for support beams or metal piping, ensuring your work is both effective and safe. This stud finder is an essential tool for homeowners and DIY enthusiasts, enhancing safety and efficiency in every project.