With a Franklin Sensors stud finder, you have the fastest, easiest, most accurate stud finder on the market. To locate wall studs, simply press and hold the button then place it on the wall and go. There is no calibration procedure. You can instantly find studs. Once you have it on the wall, the LEDs show you right where the stud is. When you move the unit back and forth, the ProSensor 710+ continues to track the location of the stud which makes it easy to instantly find the center and edges of the stud. Franklin Sensors stud finders are the most accurate stud detectors because they have more sensors. Other stud finders typically have only 1 or 2 sensors. The ProSensor 710+ has 13. With Franklin Sensors' patented technology, you can find studs in the wall with unbeatable accuracy. The wide display on the 710+ allows you to see the full width of objects such as single studs and double studs. The ProSensor 710+ is the perfect wall scanner for many projects ranging from installing towel rods and curtain rods to hanging pictures. Once you try the ProSensor 710+, Franklin Sensors stud finders will quickly become your favorite.