The Phased Array Wheel-Probe Scanner newly put on sale by Goworld is for the purpose of inspecting pipes from radial or axial direction in order to detect corrosions of the pipes or flaws in objects of composites or those of other materials with smooth surface. It's the best substitute for Full-2D encoding system and perfect counterpart to immersion technique. Its "tyre" is made of special materials with similar acoustic impedance as to water. This part together with the PA probe core is able to compete with immersion technique for UT work of top quality. It's easy to handle. The coupling is sound with minor couplant and the signals are strong even for some hard-to-reach spots.