This wall scanner helps you locate studs, hidden cables, and metal objects behind walls quickly and safely. - Precision and consistency: An internal sensor detects changes in spatial density behind walls to identify stud positions and other metal targets with high accuracy. - 4-in-1 multifunction detection: Four modes—stud, deep, metal scan (up to 60 mm), and AC scan (up to 51 mm)—for versatile wall evaluation. - Cable protection indicator: Cable alarm detects live cables up to 60 mm deep and alerts you to avoid AC lines during beam, depth, or metal scans, protecting your cables. - Easy-to-read indicators and alarm: Large LCD display plus audible alarm provide quick, precise targeting. Beeps communicate direction and proximity to guide you toward the target. Practical use scenarios - Mounting a heavy shelf or flat-screen TV: locate studs securely while avoiding concealed wires. - Renovation or electrical work: map existing cables before drilling for outlets or switches. - Maintenance and planning: detect metal pipes or rebar behind walls to prevent damage during cutting or drilling. Designed for drywall, plaster, and typical interior walls, this compact handheld unit delivers clear readings and reliable performance.