UNI-T new wall scanner UT387C enables you to detect electric wire, metal objects, wooden beams accurately. The new and improved wall scanners are great tools for interior finish, renovation, furniture installation, flooring, pipe installation, and building construction. Specifications: Model NO: UT387C Detect Principle: Electro-Magnetic Induction Metal-Scan Depth: 76mm Stud-Scan Depth (Wood): 28.5mm Thick-Scan Depth (Wood): 38mm AC Electric Wire Depth : 51mm Package Include: 1x UNI-T Center Finder wall scanner ut387c