"A temperature sensing element in which a pair of wires of dissimilar metals (as copper and iron) are joined and the free ends of the wires are connected to an instrument (as a voltmeter) that measures the difference in potential created at the junction of the two metals." . "u20683" . "694000" . "RDS445229" . "Source: The American Heritage Stedman's Medical Dictionary" . "2006.03.16" . "THERMOCOUPLE" . . "THERMOCOUPLE" . "Qualified" .