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Mineral Insulated Thermocouple


In Mineral Insulated (MI) thermocouples, elements are surrounded by compact inorganic insulation (MgO) and housed in stainless steel or heat resistant alloy sheath to protect it from environment. MI thermocouples have a lot of advantages as compared to conventional beaded thermocouples. These thermocouples are available in long lengths which can easily be wound into coils making them easy to transport. They can be flattened or bends without affecting the sheath or the cores. This flexibility enables them to be easily installed. They have a small sheath diameter allowing the thermocouple to be placed in smaller areas. Ceramic is a brittle material and when placed as beads may succumb under conditions with vibrations. MI thermocouples have high vibration strength which make them apt for such applications. These thermocouples are tested to ensure high quality.All assemblies are tested for Insulation resistance, Visual & Dimensional checks, and Single point calibration. Other tests offered "Conductor loop resistance", "Specific temperature calibration", "Nitrogen leak test", "Hot IR test".

  • Available in long lengths
  • Can be bent, twisted and flattened at any point, bends or distortions produce neither short circuits nor ruptures at the sheath or cores
  • Long units can be wound into coils for easy transportation
  • Smallest bending radius : 2 x Sheath diameter
  • Small sheath diameter and flexibility save installation space and create
  • Possess very high vibration strength since they contain no movable / brittle parts such as ceramic beads. Available in 1.0, 1.5, 2.5, 3.0, 4.5, 6.0, 8.0 and 10 mm dia as standard
  • Available in J, K, T & N calibrations
  • Minimum insulation resistance is 1.5 Mohms at 500 VDC between
  • Elements or elements and sheath for all diameters, before the thermocouple junction is formed
  • High insulation resistance and fast response.


  • Temperature measurement



  • J, K, T & N calibrations
  • 1.0, 1.5, 2.5, 3.0, 4.5, 6.0, 8.0 and 10 mm diameter
  • Please choose from our customization options and enter under comments while inquiring about this product`

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