The Walabot Multifunction Wall Scanner uses Radio Frequency (RF) technology to provide advanced detection capabilities. The tool is a cutting edge device which is paired with an Android phone (Android 6.0 and above with USB on-the-go) to produce a visual image of what is inside concrete and drywall up to 4 inches (10 cm) deep. It can show users what is in their wall in multiple modes (Pan mode, Image mode, and Expert mode). The Walabot detects metal objects, wood studs, wires, pipes and can show movement behind walls. Walabot can be used by contractors, electricians, plumbers, carpenters, and those in need of advanced wall imaging capabilities. The advanced technology is also perfect for ambitious DIYers and those who want real-time visual images of what is hidden within a wall. Compatible With Android Smartphones ONLY - not compatible with iPhone devices.