This instrument combines 3 tools in one easy to use unit

This 3-In-1 Stud/Voltage/Metal Detector is a unique instrument combining 3 tools in one unit. It detects wood studs, metal studs, objects carrying voltage, along with metal pipes and conduits behind walls, floors and ceilings. Detection is indicated via the progressive LED’s and an audio signal. Ideal for the Professional Technician, Handyman, Homeowner, and Hobbyist.