The Zircon SuperScan 1.5-in Scan Depth Metal and Wood Stud Finder is a reliable tool for detecting studs and other types of materials in walls. With its electric measuring technology and compact size of 5 inches, it is efficient and accurate in finding hidden items. The yellow color adds visibility to the device, making it easy to spot during use. This tool is perfect for professionals and DIY enthusiasts looking to ensure proper installation or repairs in various materials like metal. Tested that it works, open box with instructions.