Rtd brands

Dear all,
Please be kind enough to let me know about the best RTD s which are currently using inthe massive manufacturing industries.
According to the my requirement my factory needs RTD which can succesfully withstand for 0 to 200 c in side the ovens. Also my manufacturing operations are doing all 24 hours per day.
currently im using RTD S from local supplier and i face alots of issues.So plz be good enough to suggest me good rtd brands that all you know ...

thnks

the sensor itself is very simple, and 200 C is no problem, so what are your issues?
like stability, accuracy, self heating? etc.

on the other hand, the measuring is giving more problems and needs more attention.