testo 191-T4 – autoclave logger with 2 long flexible transducers

Highly accurate temperature monitoring with 2 long flexible sensors

  • Highly efficient validation of sterilization and pasteurization processes
  • Create full reports with a simple mouse click

Delivery time: 5-10 working days

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Delivery time: 5-10 working days

testo 191-T4 – Temperature logger for the food industry with two long flexible transducers

testo 191-T4 – highly effective validation of sterilization and pasteurization processes. Pasteurization and sterilization are key processes in food production to extend the shelf life of food products. Our reliable and robust HACCP temperature data logger helps you meet these requirements effectively.

This is what the HACCP temperature logger testo 191-T4 offers:

  • High accuracy: HACCP precision logger with 2 long, flexible sensors (length 775 mm, Ø 1.5 mm) and measurement memory of 60,000 measurements.
  • Long flexible sensor: ideal for sterilization applications in liquids or for surface measurement in freeze-drying systems. In combination with the freeze dryer sensor holder (ordered separately), the surface temperature of freeze dryer systems can be accurately measured.
  • Small and agile design: with a diameter of 20 mm, the logger is ideal for use in confined spaces – e.g. in the office. in sterilization systems
  • Robust and durable: high quality materials and innovative design make the HACCP logger particularly robust and durable. With hermetically sealed measurement technology in a separate stainless steel housing, the HACCP logger impresses with its reliability and robustness.
  • Battery change in seconds: the battery cover is threaded and can be quickly and securely screwed onto the HACCP logger without tools.
  • Reliable and tight: the data logger remains 100% tight even after a battery change. The battery cover is coated with high temperature resistant polyester ether ketone (PEEK).
  • Flexible height: the size of the logger can be varied using two different battery types. The small battery significantly reduces the dimensions of the logger. The larger battery (included in the delivery) is suitable for measurements at low temperatures, e.g. in freezing facilities.

Programming, reading and analysis of the data logger

Very practical to use: in addition to storing the data loggers, the multifunction case (available in two different sizes) can also be used for parallel programming and reading of up to 8 data loggers simultaneously. This means you don’t need an extra reading device and you also save time. With the specially developed software (order separately) for testo 191, you can program and read out the data logger, as well as analyze the measurement data on the computer.

The clear program structure guides you intuitively through the process step by step. During entry, it provides assistance at critical points through warnings. The software enables even inexperienced users to easily perform the measurement process.

Included in delivery

1 pc testo 191-T4 HACCP data logger including large battery, long distance adapter for the programming and readout unit, thread extension, factory protocol and manual.

Fabriksprotokoll: utfärdas på fabriken efter en kontroll av att produkten fungerar och uppfyller angiven mätnoggrannhet. Läs om skillnaden mellan fabriksprotokoll och ackrediterad kalibrering.

ATTENTION! The case and software are not included with the data logger. See these items under the Accessories tab. Contact us to build a tailor-made system to suit your application!

Read more about autoclave logs for food: Read more

Measuring parameter / sensor typeTemperature (Pt1000)
Measurement range-50 ... 140 °C
Accuracy±0.2 °C (-50 ... -40 °C)

±0.1 °C (-40 ... 140 °C)
Resolution0.01 °C
Measured value memory60,000 metrics
Log interval1 s ... 24 hrs
Storage temperature-20 … +50 °C
Logger with small battery20 x 45 mm (Ø x H)
Logger with large battery20 x 63 mm (Ø x H)
Transducer tube1.5 x 775 mm
Transducer tube tip3 x 25 mm
Large battery (standard)
Battery typeLithium
Operating time2500 operating hours (10 second log interval at 121 °C)
Range-50 ... 140 °C
Small battery (optional)
Battery typeLithium
Operating time250 operating hours (10 second log interval at 121 °C)
Range-20 ... 140 °C
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Datablad testo 190
Broschyr testo 190

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