Precision Sensors ProFinder 6000 Professional Stud Finder
*Quick and Easy!
*Detects Wood and Metal.
*21-Inch Sensing Area using 13 Sensors.
*Integrated Ruler, Built-In Bubble Level and Convenient Pencil Caddy.
*Detection Depth up to 1.7 Inches.
*2 Duracell "AA" Batteries and 3 Pencils Included.