Inserts for thermocouple sensors (changeable, with ceramic block).
Technical specifications
Example | Model | Range | Sensor | Accuracy | Measuring tube |
 | w2 | -40 ... +1150°C | K (NiCr-NiAl), J (FeCu-Ni) | 1 class (standard) or 2 according to EN 60751 | INCONEL 600 |

| w4 | 0 ... +1800°C | ceramics C610 ir C799 |