From the Manufacturer
VideoScanner will save you time and money by eliminating guesswork, rework, needless holes, and costly broken drill bits and saw blades. It will precisely locate wood, metal studs, joists, pipes, conduit, or rebar while continuously detecting the presence of hot electrical wires. Three selectable modes ensure precision: normal, DeepScan, and metal. The DeepScan technology penetrates concrete, plywood, drywall, paneling, and flooring. Metal detection mode helps you find heating and plumbing pipes, inner-wall exhaust vents, and ducting.