Conventional stud finders can only see the wall in one location at a time – as a result the user must slide the stud finder back and forth across the wall to “learn” the wall. However, Franklin Sensors stud finders have multiple sensors that allow them to see the wall in several locations at once as a result they don’t need any user calibration. Additionally, more sensors make Franklin Sensors stud finders much more accurate, quicker and easier to use.