Equipped with rare earth magnets that detect steel studs, nails and screws in order to pinpoint suitable locations to securely mount shelves, cabinets, television mounting brackets, etc. Built-in rotating bubble vial identifies level and plumb alignments for horizontal and vertical precision. Three anchor points on each side for easy leveling. Compact and lightweight with ergonomic shape and soft grip to fit comfortably in the hand. Small and compact, easily fits in pocket. 3/4 In. scan depth. No batteries required.