The aim of this research and development project is to develop a portable intelligent ultrasonic tomograph, which, using advanced Doppler techniques, will revolutionize the process of diagnostics of the technical condition of the building. Planned to create an innovative instrument equipped with a multi-line sensor matrix (4x8 sensors), it will allow to perform precise tomography of walls, providing non-invasive and high-resolution images of the interior of building structures. Techniques such as color Doppler, power Doppler, pulsed Doppler, as well as spectral Doppler analysis will be used in the project. The final product, which is a portable device, will enable the detection of material weakness, reinforcement damage, leaks and water soaks, which will contribute to increasing the level of safety of buildings and reducing costs related to their maintenance and repair. As a result, the company will gain a significant market advantage thanks to the possibility of offering a service of a higher standard, which will directly increase its competitiveness.