Zircon studsensor pro lcd zircon 62147 the studsensor pro lcd stud finder is the top of the line tool for locating stud edges its state of the art lcd screen provides the most precise indication of stud edges it features the same ease of use found in all studsensor tools standard scanning mode locates the edge of wood or metal studs behind most non metallic interior surfaces up to 19 mm thick deepscan mode doubles the scanning depth to 38 mm a wide lcd array indicates when a