This compact and functional device will become an indispensable assistant in any repair and construction work related to the detection of wooden or metal rails in the walls. The main feature of DW0150 is the "center-find" technology, which allows you to quickly and accurately determine the center of the rack. Thanks to this you will easily be able to accurately mark the places for fixing shelves, pictures or other elements. It can detect rails up to 1-½ inches deep, making it a versatile solution for both wood and metal racks. It can also recognize the presence of hidden electrical wiring for added safety. The Stadfinder is characterized by its user-friendliness. Its compact and slim body fits easily in your hand, and the built-in labeling channel helps you quickly mark found posts. Automatic calibration saves time during operation, and visual and audible indicators instantly signal the location of guides. And of course, the DEWALT DW0150 is powered by economical AAA batteries.