175 T3-1

Testo 175 T3 – Temperature logger

The testo 175 T3 temperature logger with its two connections for external thermocouple probes is a good idea when you would like to record your temperatures at two locations in parallel: for example when measuring the flow and return temperature on radiators. The readings are securely saved in the temperature logger and are available for later measurement data analysis and documentation.

Product benefits:

  • Practical for frequent and long-term measurements: memory capacity of 1 million readings, up to 3 years’ battery life
  • Very large temperature measuring range from -50 °C to +1 000 °C
  • Including wall bracket
  • Measurement data analysis and documentation: three different software versions to choose from, basic software available as a free download



SKU: 0572 1753.
 The testo 175 T3 temperature logger is equipped with two connections for external thermocouple probes (type T or type K). This means the data logger is ideally suited for carrying out temperature recording on two channels. This is for instance necessary, if you want to check that a heating system is working properly. To do this, the temperature logger measures the flow and return temperature simultaneously. The data logger can likewise be used in industrial production control, if process temperatures need to be checked at different locations.
  • Testo 175 T3 temperature logger
  • 2-channel temperature logger with external sensor connections (thermocouple type T and type K)
  • including wall bracket
  • lock
  • batteries
  • calibration protocol

Measuring range

-50 to +1000 °C


±0.5 °C (-50 to +70 °C) ±0.7 % of mv (+70.1 to +1000 °C)


0.1 °C

Testo 175 – T3- Download