Description: This stud center finder, metal and AC live wire detector is a good helper when you decorate your home. It can avoid unnecessary losses when you want to dig a hole to hang a picture or install shelves and so on by locating hidden metal pipes, live wire, stud and wooden frames accurately. It has 4 detector modes: 1.Stud common detection mode locates the edges and center of wood or beam in normal walls up to 0.75 inch (19 mm) deep. 2.Deep foreign object detection mode doubles the scanning wood/beam and metal parts located particularly deep within the wall, detection depth up to 1.50 inches (38 mm). 3.Metal scan mode: locates the metal such as iron, copper and aluminum pipe up to 0.9 inch(24mm). 4.AC wire scan mode that locates the AC wire up to 1.5 inch(38mm). This detector comes along with an audio and visual indication which allows you to make a mark easily when the metal, AC live wire or stud is detected. And the LCD screen is easy to read for the back-light. Features: Multi-function detector with four modes: Stud, metal, deep and AC. Stud detection mode locates the edges and center of wood or beam in normal walls up to 0.75 inch (19 mm) deep. Metal detection mode detects metal, such as copper, aluminum and iron pipe, up to 0.9 inches (24mm) deep. Deep foreign object detection mode doubles the scanning wood/beam and metal parts located particularly deep within the wall, detection depth up to 1.50 inches (38 mm). AC detection mode finds and traces hided electrical lines, up to 1.5 inches (38 mm) deep. It has many advantages, such as easy-to-read LCD display indication, lightning symbol shows the wire warning and easy-to-use, powered by 1*9V 6F22battery(not included). Specification: Condition: 100% New Brand Material: Plastic Shell Component: Plastic Shell + Electronic Components Color: Red + Black ( Shown as picture) 4 Detector Modes: Stud, Metal, Deep and AC Stud Detection Depth: 19mm / 0.75inch Accuracy Depth: 3mm / 0.12inch Metal Detection Depth: 24mm / 0.9inch Accuracy Depth: 6mm / 0.24inch Deep Foreign Object Detection Depth: 38mm / 1.5inch Accuracy Depth: 5mm / 0.2inch AC Detection Depth: 38mm / 1.5inch Accuracy Depth: NA Power Supply Battery: 1 x 9V 6F22 battery (not included). Detector Size (L x W x H): Approx. 8 x 3.5 x 15cm / 3.1 x 1.4 x 5.9inch Package Weight: 140g Package Included: 1 x Detector