RTD - or Resistance Temperature Detectors - is a temperature sensor that contain a resistor that changes resistance value as its temperature changes. They have been used for many years to measure temperature in laboratory and industrial processes, and have developed a reputation for accuracy, repeatability, and stability. Thin film Platinum Resistance Temperature Detectors from TT-PT group are commonly used components in industrial applications thanks to their high precision and long-term stability. Capital Semiconductor offers three standard types of PT RTDs: PT100, PT500 and PT1000, that are provided with standard tolerances.
