The Wallscanner D-tect 150 uses ultra-wide band (UWB) radar technology to detect material depth, center line, and relative width of ferrous and nonferrous metals, nonmetal objects, and live A/C wiring located beneath the surface. The scanner has seven different detection modes: concrete, deep concrete, wet concrete, in-floor heating, drywall, metal, and signal view. Bosch Power Tools & Accessories. 877-267-2499. www.boschtools.com