DURABILITY&5 SCANNING MODE that go as deep as 2 inches-This wood/metal stud finder has High-Quality sensors and Shock- & Dust- body for durability and . This wall stud finder features five scanning modes to accommodate various wall material thicknesses:3 depth stud modes,detecting up to 1.5 inches(38 mm) deep in drywall; Metal mode could detect various metal materials deep up to 2.36 inches; and AC mode detects live AC wires up to 2 inches. Easy to Use and Reliable - our goal is to develop the reliable stud finder with laser level to help you avoid the detecting hazard. The two-button design is very easy to use. The button on the left is ON/OFF to open or close the wall finder, and the other on the right is scanning mode switch. With the help of this stud finder, you can quickly locate wood, metal and AC wires hidden in the walls or ceilings of to help you avoid potential serious issues when you install , cabinets etc. color: Black Material: ABS Package Contents: 1X Stud Finder Wall Scanner Detector(1X9V battery not included) 1X English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.