SUB-SCANNER� M12� Cordless Detection Tool Kit (SKU: 2290-21)The SUB-SCANNER� M12� Cordless Detection Tool is a heavy duty pistol grip detection tool for professional commercial and industrial applications. Powered by the Milwaukee M12� LITHIUM-ION battery, the 2290-21 can detect rebar up to 6" deep in concrete, as well as the location and depth of materials beneath gypsum, ceramic tile and marble. In addition, the M12� SUB-SCANNER� Detection Tool was designed with a four wheel design for durability and smooth, accurate measurement. The 2290-21 is covered by the Milwaukee 5-Year Warranty. Includes 2290-20 M12� SUB-SCANNER� Detection Tool, M12� LITHIUM-ION Battery Pack, 30-Minute Charger, Carrying Case.