This instrument combines 3 tools in one easy to use unit

This digital 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. By employing the latest CPU technology, it will give an accurate visual reading shown on the LCD screen along with an audio signal. Ideal for the Professional Technician, Handyman, Homeowner, and Hobbyist.