Precision and consistency Our updated internal sensor delivers precise bolt detection behind walls. The scanner also shows the edges of bolts for quick position checks, making DIY projects more efficient. 4-in-1 multifunction detection Four modes for flexible detection: Bolt detection, Depth (up to 60 mm), Metal detection (up to 60 mm), and AC current detection (up to 51 mm). This covers a range of sensing needs and saves time for professionals, homeowners, and DIYers. Cable protection indicator Cable alarm detection extends up to 60 mm deep, providing a constant reminder to avoid AC cables during bolt, depth, and metal scans. Clear display and alerts Large LCD display and audible alarm enable easy identification of object positions. The LCD indicates direction and intensity through beeps, guiding you closer to the target and enabling faster detection. Use scenarios - Mounting a TV or shelf: locate studs and avoid cables behind the wall. - Renovation work: find studs and identify live wires before drilling. - Electrical or cabling projects: detect live AC lines before cutting or drilling. Performance and practicality Provides precise, reliable detection with clear visual and audible feedback. Suitable for professional use, home projects, and DIY tasks.