Thermocouples with metal protection tube and sheath measuring insert

Straight line thermocouples with metal protection tubes and sheathed mineral-insulated gauge slide  (10-TMM) are used for general temperature measurement in liquid, gaseous and plastic media up to 1200°C.


The main difference to thermocouples with ceramic protection tubes (00-TMT) lies in the use of a sheathed mineral-insulated gauge slide. The thermocouple wires are fully embedded in a highly pure magnesium oxide with an additional metallic sheath.


The advantages compared to thermocouples with ceramic protection tubes include:

  • Ease of Replacement
  • Vibration and Impact Resistance
  • Increased Holding Time
  • Possibility for Test Bores

In order to achieve extra speed in measuring temperature changes, we also offer these temperature sensors with tapered sensor tip.

The thermoelectric voltages and tolerances of our mineral insulated sensor inserts are pursuant to standard DIN EN 60584, Class 1.

Application Examples for Thermocouple Assemblies with Metal Protection Tube and Sheathed Mineral-Insulated Gauge Slide: