• Two long, flexible probes for precise temperature measurement in liquids and on surfaces and for the analysis of heat penetration
• Durable, robust, reliably tight, even after changing the battery
• Changing the battery takes just seconds, saving time and increasing efficiency
• Simultaneous programming and readout of several HACCP data loggers via the multifunction case

Certified by HACCP International, the testo 191-T4 temperature data logger for monitoring pasteurization, sterilization and freeze-drying processes has two long, semi-flexible probes which allow you to measure in corners as well. The data logger is designed for food production and is particularly suitable for monitoring the temperature in liquids or on surfaces, for example on plates of freeze-drying systems.