The RYOBI Whole Stud Finder is a hand-held tool designed for accurately detecting studs and other electrical components behind walls. It features auto depth scan technology and multiple LED indicators for precise measurements. The compact design of 7 inches in height, 1.25 inches in length, and 3.5 inches in width makes it easy to use in various locations. With electric measuring technology and a durable plastic construction, this stud finder is a reliable tool for home and workshop projects.