PRT (Platinum Resistance Thermometer)

A Platinum Resistance Thermometer (PRT) is a precise device used to measure temperature. It works based on the property that platinum’s electrical resistance changes consistently with temperature. When the platinum wire inside the PRT warms up or cools down, its resistance increases or decreases predictably. By measuring this resistance with an electronic instrument, we can accurately determine the temperature. PRTs are known for their stability, accuracy, and wide temperature range, making them essential in scientific, industrial, and calibration settings for reliable temperature measurement.