Since the discovery of empathic species within their native region of space, the Sahaad have developed a means of detection for psionically capable races. First generation PSIDAR had been bulky, faulty and only provided the bare basics of detection. However with the advent of more advanced systems and understanding of the inner workings of the mind. Refinements as well as in depth has resulted in a cutting-edge system capable of detecting disruptions in psi-fields within a wide area around their vessels.
The PSIDAR works much like RADAR in imaging except with three-dimensional detail and a rough estimation of numbers.