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Mineral Insulated Thermocouples

What is a Mineral Insulated Thermocouple?

A mineral insulated (MI) thermocouple consists of conductors embedded in highly compacted magnesium oxide inside a metal sheath. This design offers excellent durability, flexibility, and temperature resistance.

TC has been a trusted manufacturer and supplier of thermocouples for more than 50 years, supporting manufacturers, OEMs, and research laboratories across Australia.

Our local engineering team is ready to assist from initial consultation through to delivery, helping you choose the right temperature sensor for your application.

with Basic End Seal
0.25 to 10.8mm dia.
Mineral Insulated Thermocouples With Basic End SealInternal seal with bare conductors
with Pot Seal
0.25 to 10.8mm dia.
Mineral Insulated Thermocouples With Pot Seal a large selection of plain and threaded pot seals supplied with tails or extension cable (PVC, FEP, Fibreglass etc.)
with Miniature Plug
0.25 to 3.2mm dia.
Mineral Insulated Thermocouples With Miniature Plug fitted with a miniature thermocouple plug rated to either 220ºC, 300ºC, 425ºC or 600ºC
with Miniature Socket
0.25 to 3.2mm dia.
Mineral Insulated Thermocouples With Miniature Socketfitted with a miniature thermocouple socket rated to either 220ºC, 300ºC, 425ºC or 600ºC
with Standard Plug
1.5 to 8.0mm dia.
Mineral Insulated Thermocouples With Standard Plugfitted with a standard thermocouple plug rated to either 220ºC, 300ºC, 425ºC or 600ºC
with Standard Socket
1.5 to 8.0mm dia.
Mineral Insulated Thermocouples With Standard Socketfitted with a standard thermocouple socket rated to either 220ºC, 300ºC, 425ºC or 600ºC
with Lemo Connector
3.0 to 6.0mm dia.
Mineral Insulated Thermocouples With Lemo Connector fitted with a size 1 Lemo plug
or socket
with Terminal Entry Gland
1.0 to 8.0mm dia.
Mineral Insulated Thermocouples With Terminal Entry Gland terminated with a 16mm ISO x 1.5mm compression gland seal supplied with tails or extension cable (PVC, FEP Fibreglass etc.)
with Micro die cast alloy head 3.0 to 6.0mm dia. Mineral Insulated Thermocouples With Micro HeadMicro die cast alloy screw down terminal head with ceramic terminal block. Suitable for simplex and duplex assemblies with Miniature IP67 die cast head 3.0 to 8.0mm dia.Mineral Insulated Thermocouples With Miniature HeadWeatherproof die cast alloy screw top terminal head with ceramic terminal block. Suitable for simplex and duplex assemblies with Standard IP67 die cast head 4.5 to 10.8mm dia. Mineral Insulated Thermocouples With Standard HeadWeatherproof die cast alloy screw top terminal head with ceramic terminal block. Suitable for simplex, duplex and triplex assemblies with IP67 heavy duty cast iron head 4.5 to 10.8mm dia. Mineral Insulated Thermocouples With Cast Iron HeadWeatherproof cast iron screw top terminal head with ceramic terminal block. Suitable for simplex, duplex and triplex assemblieswith IP67 Bakelite head
4.5 to 10.8mm dia.
Mineral Insulated Thermocouples With Bakelite HeadWeatherproof Bakelite screw top terminal head with Bakelite terminal block. Suitable for simplex, duplex and triplex assemblies
with alloy straight through head 4.5 to 10.8mm dia.Mineral Insulated Thermocouples With Straight Through HeadDie cast alloy straight through terminal head with Bakelite terminal block. Suitable for simplex and duplex assemblies with 316 Stainless Steel head
4.5 to 10.8mm dia.
Mineral Insulated Thermocouples With Stainless Steel HeadWeatherproof 316 stainless steel screw top terminal head with ceramic terminal block. Suitable for simplex and duplex assemblies
with BUZ-H style top hat head
4.5 to 10.8mm dia.
Mineral Insulated Thermocouples With BUZ-H Style HeadWeatherproof die cast alloy screw down 'flip' terminal head. Mainly used for duplex assemblies where two transmitters can be fitted
with spring loaded terminal block 3, 4.5, 6 and 8mm dia.Mineral Insulated Thermocouples With Spring Loaded Terminal BlockSpring loaded insert assemblies. The end seal is incorporated into a terminal block for mounting into any standard terminal head
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