Since you are controlling a pharmaceutical manufacturing environment, your instrument of choice must meet high accuracy, stability and reliability specifications. To give you a good overview of our HVAC product offering please have a look at the following document:
https://www.vaisala.com/sites/default/files/documents/VIM-G-HVAC-Product-Brochure-210x280-B211277EN_1.pdf. Please look into section ±2% HUMIDITY AND TEMPERATURE INSTRUMENTS (for example: HMDW90, HMDW110/112, HMT120/130, HMD60/70) and select proper instruments that meet the IP-rating, mounting needs and other requirements of your application.