Ceramic Sheating Thermocouple

The two main specialties of thermocouple are rugged construction and versatility, with many selections for various temperature ranges. Thermocouples are made up of two different material wires welded together. These produce a very small DC voltage, depending on temperature and thermocouple type. The controller checks this voltage and compares it with standard values and, displays controlled temperature. It is inexpensive and comes in a wide variety.