Are data loggers also suitable for high temperatures?

Yes, the EBI 12-T221/T421 can be used in the EBI TIB thermal insulation box as follows:

at 200 °C = 90 min.
at 250 °C = 65 min.
at 300 °C = 55 min.
at 400 °C = 40 min.

Following this application, it must be taken from the thermal insulation box and allowed to cool to room temperature.

An alternative is to use the data logger EBI 40-TC01/TC02 together with the type TPN 1221 sensors. These can measure up to +1200 °C
where the logger remains outside and only the sensors are inserted.