1、5 in 1 Design: The use of 5 in 1 design, more powerful, more accurate, longer duration, to bring you excellent use experience 2、Alarm Design: The design of the alarm, so that you can know the situation of the wall at any time, so that the operation is more accurate 3、Fast Positioning: This product quickly and easily locates metal studs, joists, metal tubes, rebar, live AC wires behind walls, floors, and ceilings 4、Wide Application: Can clearly identify what objects inside the wall, more intuitive, more accurate. Suitable for wood detection, metal detection, current detection 5、Essential Tool for Family Use: Convenient, durable, easy to operate, it can sense the change of space density behind the wall, is a family practical tool Item Type: Wall Scanner Sensor Material: ABS Weight: Approx. 211g / 7.4oz Alarm Mode: Buzzing Power Supply: 6F22x1 Section, 9V(Shipped Without Battery) Display: LED Green Backlight Screen 1 x Wall Scanner Sensor 1 x Specification