Resistance thermometers measure the temperature through the dependence of their electrical resistance on the temperature. Resistance thermometers are suitable for applications between -200 ... +600 °C (dependent on instrument model, sensor element, accuracy class etc.). Accuracy classes AA, A and B (per IEC 60751) apply to all resistance thermometers. A particularly suitable metal for precise temperature measurement is platinum (Pt). Platinum resistance thermometers are precise sensors with the greatest linearity, through which the best reproducibility is achieved during production. Advantages of platinum: High chemical resistance Reproducibility Long-term stability Simple processing