Check the listing for details. Stud Finder Sensor Wall Scanner - 5 in 1 Electronic LED Display TH511. Condition: Used. Listed at 24.00 USD. Stud Finder Sensor Wall Scanner - 5 in 1 Electronic Stud Sensor Locator Wood Beam Joist Finders Wall Detector Edge Center Finding with LCD Display for Wood Live AC Wire Metal Studs Detection GREAT ACCURACY AND CONSISTENCY - Tavool stud finder is professionally designed! Tavool stud finders uses the UPGRADE INTERNAL SENSORS. It senses a change in density in the space behind the wall and locates the stud center with GREAT ACCURACY. In additions. The shape of this wall scanner also shows the edges of the stud. The center of a stud is the most secure location when mounting anything heavy. The edges help you to recheck the locations. Take it home, makes your DIY homework easier! 5 SCANNING MODES UP TO 60MM DEPTH - Tavool stud locator has mufti-fuctions and can quickly and easily locates wood metal studs joists beams metal pipe rebar and live AC wire behind walls, floors, and ceilings. StudScan Mode scans through one layer of drywall up to 0.5 in.（12mm) and 1 in . (25mm) thick. DeepScan Mode scans through 2 layers of drywall up to 1.5 in. (38 mm) deep. Deep Stud Scan Mode is a higher sensitivity scanning mode that should be used when there are extra layers of wallboard 9v Battery required Model: Tavool TH511