Thermocouples are the electrical devices included with dissimilar electrical conductors. They are needed to make an electrical junction. These can create a temperature-dependent voltage and assist in the accurate measurement of temperature. Thermocouples are functional as the temperature sensors. They are useful for tribological studies and can make a heat generation by friction. Applications of thermocouples are so many. These are required to process the fluid and can detect the atmospheric temperature very effectively. These offer temperature extents over an extensive range of temperature. Offered are suited for the sectors of manufacturing as well as experimental settings.