Multi-Function: It is a professional stud finder that allows you to drill a hole on the wall or other activities to stay safe. And this multi-mode magnetic finder can work for wood studs, metal objects and live wiring. Compact Size: Small, light and compact, fits easily in pocket. It is lightweight and features an ergonomic one-touch handle. Accuracy and Fast Locating - With the latest sensor technology, this best professional stud finder can accurately locate the center of wood studs up to at 19mm deep, metal nails up to 30mm deep, wire detection indicates the presence of live wires up to 2 inches. Easy to use: LCD display for easy reading and a continuous audible warning reminding you of nail edge locations. Auto power off without any operation after 60 seconds. Contents: 1 stud finder and 1 6F 9V battery not included. Features: Three models to choose from. Find wood and metal nails. Find wires, pipes and AC joints. < p>Handles for ergonomic comfort Low battery indicator. Front pointer for easy marking of nail edges Features: Battery power: 6F 22 9V Stud detection depth: 19.05mm behind the wall Shell material: ABS Metal Detection Depth: 38.10mm Dimensions: 155 x 28 x 75 mm Weight: approx. 127 g. Contents: < /p> 1 stud finder Note: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference, it there will be some color difference, depending on the physical item received.