Type S Thermocouple

The very best thermocouple for constant high fire applications is a Type S platinum thermocouple with an alumina sheath. Type S thermocouples are composed of a positive leg which is 90% platinum and 10% Rhodium, and a negative leg which is 100% platinum. At temperatures used in pottery kilns (even the highest 2350°F) these thermocouples can last for a very long time (as long as they are not mechanically broken). The Type S thermocouples that we provide have a 5/16" OD alumina sheath. They are ungrounded. Termination is in a ceramic terminal block. For more information click here.