Zircon multiscanner pro sl zircon 62120 zircon s multiscanner pro sl is the go to tool for all sub surface scanning projects it easily and accurately locates the edges of studs joists and metal it also locates and traces live electrical wire a 4 mode switch provides instant access to all functions a wide lcd array indicates an approaching stud a full lcd arrow audio tone and spotlite pointing system alert users when stud edges are located studscan finds metal or wood s