Monitoring and documentation of pressure and temperature efficiently simplified 

The testo 191 HACCP data logger system for pasteurisation, sterilisation and freeze-drying processes is the intelligent solution for monitoring temperature and pressure in thermal preservation processes. 

The system consits of: 

  • 5 data loggers
  • 1 multifunctional case
  • 1 x professional software

All componenets provide you with support throughout the monitoring process and quality parameters, ensuring the correct functioning of your systems and meeting all regulatory requirements regarding documentation. Reliably, efficiently and precisiely. 

How to contact us

Would you like to know more about the testo 191 HACCP data logger system? 

Then simply send us an e-mail or call us. Our experts will be pleased to assist you at any time. 

The testo 191 HACCP data loggers

Data Loggers

  • For temperature and pressure
  • Fast and secure battery replacement 
  • Loggers remain tight even after battery charge
The testo 191 multifunction case

Multifunction Case

  • Interface for software
  • Parallel configuration and readout of up to 8 data loggers
testo 191 professional software


  • For configuration and readout 
  • Intuitively operated
  • Guided processes 

Product brochure
testo 191

Product brochure testo 191

Fact sheet
testo 191

Fact sheet testo 191

Application example Sterilization

Application example sterilization and pasteurization

Application example Freeze-drying

Application example Freeze-drying testo 191