Franklin Sensors FS710PROProSensor 710+ Professional Stud Finder with Built-in Bubble Level & Ruler,Yellow

High accuracy: uses 13 sensors to give accurate readings every time; one-step operation: just press the button; when placed on wall LED lights instantly indicate studs; deep sensing: more sensor pad area than other scanners results in deeper scan; triple accuracy technology analyzes and triangulates data from all the sensors for highest accuracy; Built-in bubble level makes this 2 tools in 1!