What is Thermo-Electric Thermometer? The principle of the Seebeck effect and the concept of thermo-electricity are used to construct very accurate thermometers called thermo-electric thermometer which is a device used for measuring low as well as high temperatures. Principle of Thermo-Electric Thermometer: Its working is based on Seebeck Effect. In this thermometer, different thermocouples are used for measuring different range of temperature. Example- Constantan-Copper couple is used for temperature range -200°C to 400°C. Constantan-Iron couple is used for temperature range 0°C to 800°C. Copper-Iron couple is used for temperature range 0°C to 260°C. Chromel-Alumel couple is used for temperature range … Continue reading Thermo-Electric Thermometer