Monitoring and documentation of pressure and temperature efficiently simplified

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

The system consists of:

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

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

How to contact us

Would you like to get to know 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
  • Even after the battery change, the loggers remain tight
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
Contact person

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support you?