The Temp-Tek Melt Sensor is a spherial bead of two metals, one magnetic and one nonmagnetic, that expands and contracts under the influence of both temperature and pressure. It takes the appllied pressure (P) by the melt which compresses the sensor area (n*D2) to decrease the bead volume (V). The radial force (F) generates a pressure emf (Pemf). A temperature (Temf) is generated from the beads dissimilar metals. The (Temf) and (Pemf) is the actual thermocouple meter readout displayed in our Melt-Profiler Software.