(Platinum Rhodium – 30% / Platinum Rhodium – 6%) alloy wire, 0.5 mm (± 0.1 mm) dia, (Rhodium 30%)

Platinum is a chemical element with symbol Pt and atomic number 78. Rhodium is a chemical element with symbol Rh and atomic number 45.

The Type B thermocouple is used in extremely high temperature applications. It has the highest temperature limit of all of the thermocouples listed above. It maintains a high level of accuracy and stability at very high temperatures. The type B has a lower output than the other noble metals (type R & type S) at temperatures below 1,112F (600C).