• Thermocouples
  • Protection Tubes
  • Thermocouple Accessories
  • Chart Paper & Recording Products
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Sheath Style Thermocouples

Pyro Services mineral insulated thermocouples are fast-responding, durable and capable of handling high temperatures. Manufactured with best-in-class thermocouple material. The rock hard compacted MgO insulation further enhances the sensor’s ability to “read” temperature by transferring heat quickly to the measuring junction. Mineral insulated thermocouples outperform bare wire thermocouples in most applications.


  • Single and Dual Thermocouples
  • Diameters as small as 0.020 in. (0.50 mm)
  • Standard or Special limits
  • Mineral Insulation
  • Miniature or Standard size Plug or Jack Termination
  • Flexibility material
  • Custom Capabilities
  • Cast iron, aluminum, miniature and explosion proof heads
  • Bushings and adaptors (bushing’s can be atmosphere tight if requested)
  • Easily handles temperatures up to 2200°F (1200°C)

Sheath Materials

  • Inconel 600
  • 304 stainless steel
  • 316 stainless steel