Below are ratings on the material, not to be confused with measurement range.
Common TC types used on HOBO data loggers:
- Type-J and Type-T wire is Teflon insulated and rated up to +400°F (+200°C) continuous, and +482°F (+250°C), for 24 hours
- Type-K wire is glass-braid insulated and rated up to +900°F (+482°C) continuous, and +1000°F (+537°C) for a short single exposure