Ideal for Locating Studs, Objects/Wires Carrying Voltage, Hidden Metal. The full-featured MSV350 Digital 3-in-1 Stud, Voltage & Metal Detector offers an automode setting that allows users to separately or simultaneously search for hidden studs, metal and wiring. This sophisticated device uses a multi-scan feature with microprocessor control circuits to provide precise and accurate detections. Visual readouts on the unit’s LCD screen combine with an audio signal when the device locates its target.