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L-Geo Style Thermocouples

Products / Thermocouples / L-Geo Style Thermocouples

Similar in appearance to the M-Geo style thermocouples, but not composition. Our L-Geo style thermocouples incorporate loose packed ceramic insulators.

Build a Custom Thermocouple

L Geo style thermocouples and thermocouple insulators from GeoCorp. L Geo thermocouples incorporate ceramic thermocouple insulators.
GeoCorp’s L-Geo style thermocouple incorporates loose packed ceramic insulators. Get a quote for your custom assembly today.

L-Geo Style Thermocouples: Product Details

ANSI Calibration Types

  • Type K
  • Type J
  • Type N
  • Type T
  • Type E
  • Type R/S
  • Type B
  • Type C

Element Options

  • Single
  • Duplex
  • Triplex


1/8″, 3/16″, 1/4″, 5/16″, 3/8″ and 1/2″
Call for metric availability.


  • Alumina
  • Mullite
  • Hafnia

Hot Junction Styles

Ungrounded Junction
Thermocouple junction is separate from the welded external sheath end
Grounded Junction
Thermocouple junction is welded into the end of the external sheath
Exposed Junction
Thermocouple junction is exposed and butt-welded together

Termination Options

  • Thermocouple connectors & accessories
  • Transition to leadwire with metal relief spring
  • Stripped bare leads

Sheath Materials

  • Inconel 600
  • 304 stainless steel
  • 310 stainless steel
  • 316 stainless steel
  • 446 stainless steel
  • Molybdenum
  • Tantalum
  • Alumina
  • Mullite