Thermometer PLECS 1.5 Online Help Thermometer Purpose Output the measured temperature. Library Thermal Description The Thermometer measures the temperature difference between its two thermal ports or between the thermal port and thermal reference and provides it as a continuous signal at the output of the component. The output signal can be made accessible in Simulink with a Continuous Output block or by dragging the component into the dialog box of a Probe block. Dialog Box Probe Signals Measured temperature The measured temperature in kelvin (K).