Thermocouple wires and extension cables are identified by color code for the type of thermocouple; interchanging thermocouples with unsuitable extension wires destroys the accuracy of the measurement.
ThermocouPLe Wires And eXtEnsion cabLEs aRe idEnTIfIed by COlOr Code for thE type of TherMocOUple; InTerchAnGing THermocouples With UnsUitaBle ExteNsIon wiRes destrOys the aCCuraCy of ThE meaSuremenT