Based on an innovative system of 384 IR microbeams, the system detects the small interferences generated by the organisms present in the sample. In this way, a pattern of activity is recorded and processed using software specifically designed for real-time data acquisition. The digital analysis of signal changes (proportional to light intensity) allows us to detect the movement of the organism as it passes through the beam of light. An algorithmic software calculates the number of activity events per unit time.