A thermocouple is a sensor for measuring temperature. It consists of two dissimilar metals, joined together at one end. When the junction of the two metals is heated or cooled a voltage is produced that can be correlated back to the temperature. The thermocouple alloys are commonly available as wire.
The electric resistance of metal wire rises as the temperature rises. This product, therefore, reads the resistance value to measure the temperature.
This product cosists of temperature sensor, conductor, and measureing instrument.