Detects wood studs, metal objects (rebar, steel/copper pipes) and live wiring. Illuminated graphical LCD (liquid crystal display) indicates mode, detection strength, and more. Deep metal detection capability detects steel up to 4-3/4" deep in cured concrete. Automatic center finder for locating center of detected wood or metal object. 3 selection modes (wood, metal, AC (alternating current) wiring) with automatic calibration for easy and precise detection. Audible detection signal with on/off button. Ergonomic soft grip for secure grip and comfort. Illuminated ring indicates detection status. 14 F (degree Fahrenheit) to -10 C (degree Celsius) operating temperature. Max detection depth: copper wiring 2", ferrous metals 4-3/4", non-ferrous metal 3-1/8", wood 1-1/2". Includes (1) 9V (volt) battery, hand strap.