Calling all environmental control venders!

I am looking for a digital humidity probe that is accurate in the 0 to 20% range with a +/- of .5%. Size is a critical factor but not as important as humidity.

The probe must be either disposable or servive an autoclave. MTF of more than 90 days.

This is for a special piece of lab work where accurate is a primary requirement.

If you have a probe that fits this billing, please let me know.