Locate the edges of wood and metal studs while being warned of the presence of live, unshielded AC electrical wiring with the StudSensor Pro35. It’s innovative contoured design and bright user-friendly interface makes finding studs quick and easy. Securely anchor pictures, mirrors, shelves and more.StudScan mode locates the edges of wood and metal studs up to 3/4 in DReady light indicates when calibration is complete and tool is ready for useEdge arrow lights up sequentially as the tool approaches a stud and fully illuminates when the stud edge is locatedZircon’s patented “over-the-stud” feature alerts if scan begins over a studWireWarning detection indicates the presence of live, unshielded AC electrical wiring up to 2 in DSpotLite pointer shines an arrow-shaped image on the scanned surface to clearly indicate the edge of the studA “V” marker groove enables accurate marking of stud edge locationErgonomic grip for a secure hold in either hand at any angle