ProSensor 710 Franklin Sensors ProSensor 710 Precision Stud Finder Yellow Advanced Multi-Sense Technology senses the wall in multiple locations simultaneously Bright LEDs lights illuminate to indicate the position of hidden objects - making it very easy to visualize the position of studs Identifies the width of hidden objects so that you not only know the position of hidden objects, but so you also know the size of them Can identify the position of multiple studs simultaneously Deep Scanning is always active (up to 1.5")