Stud Sensor Overall Height 1 3/8 in Batteries Required Batteries Required (Included) Overall Width 3 in Materials Detected Ferrous Metal Live Wire Wood Battery Type 9V Scan Depth for Ferrous Metal - Maximum 3/4 in Scan Depth for Wood - Maximum 3/4 in Scan Depth for Live Wire - Maximum 2 in Features Ergonomic Design and Soft Grips Scan Depth for Non-Ferrous Metal - Maximum Not Applicable Display Type LCD Stud Finder Type Electronic