Precious metal armoured thermocouple mainly consists of precious metal casing, insulating materials, dipole wire materials.

The characteristics of precious metal armoured thermocouples can be summarised as follows: (1)Corrosion resistance (2)good stability of the thermal potential, long-term use of the thermal potential drift is small; (3)The upper limit of the use temperature is high; (4)Armoured thermocouple end is hermetically sealed, no residual gas inside (5)High insulation resistance, precious metal armoured thermocouple at room temperature can reach more than 50MΩ; (6)Product specifications, protection tube materials can be processed according to user requirements (7)Easy to bend, good flexibility, simple installation (8)Resistant to pressure and vibration; (9)Short thermal response time; long service life