Testo 175 T1 Temperature Data Logger


The testo 175 T1 data logger has a built-in temperature sensor and is ideal for monitoring and logging the temperature in cool and cold rooms as well as in storage facilities.

The logger’s display provides you with a wide range of valuable information including current measurement values, threshold values, points where these thresholds have been exceeded, min/max values, and remaining battery power. And because all these values can be read off directly from the display, there is no need for you to boot up your PC. In addition to this nice little detail, the logger also has a super size memory, which can save up to 1 million measurements, and an exceptionally long battery life of up to 3 years. This gives you the freedom to read out the logger data at longer intervals, even when measuring cycles are shorter. The user can replace the triple AAA batteries included in the delivery.

Availability: In stock (can be backordered) SKU: TESTO-608-H2-1-1 Categories: , ,
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Testo 175 T1 – Temperature Data Logger

The testo 175 T1 temperature data logger is ideal for monitoring storage temperatures and long-term monitoring. It is certified for use in food environments and measures and logs temperatures constantly and reliably.

  • Ideal for long-term measurements.
  • Can save up to 1 000 000 readings.
  • Battery life up to 3 years
  • Wall mount
  • HACCP and EN 12830 compliant, IP 65 protected
  • Data analysis on PC: three software options to choose from; Basic software as a free download
  • Professional software with Excel export function for programming the logger and data analysis
  • Temperature measuring range from -35 °C to +55 °C
  • Automatic measuring data backup when the battery runs out or is changed
  • Transfer of measuring data via SD card
  • Displays violations of limit values
  • Tested according to DIN EN 12830
  • HACCP compliant and HACCP International certified
  • IP65 protection: the temperature data logger can remain in the storage or vehicle cargo area during cleaning

What It Can Do

You can save up to 16 000 readings with the Testo 174T temperature data logger securely. Because measurement data you have saved will not be lost even when the battery is empty or being replaced. This means a high level of data security is guaranteed. You can easily and quickly read the current temperature measuring value on its large display, along with any possible violations of limit values. The integrated NTC sensor stands for a high level of accuracy. Its large measuring range, from -30 to +70 °C, and its compact design make the Testo 174T temperature data logger competent support for virtually every kind of temperature recording.

The Testo 174T mini temperature data logger meets the requirements of EN 12830 and is HACCP-compliant, as well as having international HACCP certification, which means it is ideally suited for measurements in the food industry (e.g. for storage temperature measurement). Particularly practical: the data logger has water spray and jet protection according to IP 65. This enables it to be left in the measuring location even when warehouses are being cleaned. The temperature data logger is also suitable for temperature control in refrigerators or cold stores because it can be used at temperatures down to -30 °C.

Programming and Analysis

Users can choose between three software versions for programming and reading your data logger and for analyzing the measurement data on the PC:

  • ComSoft Basic software – available as a free download – for fast programming of the temperature data logger and easy data analysis
  • ComSoft Professional software – can also be ordered as an option – offers a variety of possibilities for detailed analysis of temperature readings
  • ComSoft CFR 21 Part 11 software – can also be ordered as an option – the best solution for special requirements according to CFR 21 Part 11 in the pharmaceutical sector

Users need a USB interface for programming and reading the mini temperature data logger.

Attention: Please download the newest software version before using the USB interface for the first time. The software can be found in the download area.


General technical data
Dimensions89 x 53 x 27 mm
Operating temperature-35 to +55 °C
Product-/housing materialPlastic
Protection classIP65
Channels1 internal
StandardsEU-guideline 2014/30/EU; 2011/65/EU
Measuring rate10 s - 24 h
Battery type3 x AIMn type AAA or Energizer
Battery life3 years (15 min. meas. rate, +25 °C)
Interfacemini usb, SD card slot
Memory1,000,000 measuring values
Storage temperature-35 to +55 °C
Temperature - NTC
Measuring range-35 to +55 °C
Accuracy±0.5 °C (-35 to +55 °C) ±1 Digit
Resolution0.1 °C

Delivery Scope

testo 175 T1 data logger with internal sensor (NTC), including wall bracket, lock, batteries, and calibration protocol. Caution: To program the data logger, you need a USB cable that is not included in the delivery scope, but you are welcome to order if required. Measurement data can also be transferred to the PC via the USB cable or an SD card (available as an option).


Monitoring and documentation of the temperature in cold rooms

Many foodstuffs or medicines have to be stored within a certain cold temperature range. This may be in individual refrigerated storage rooms, but also in specialised cold storage warehouses or high bay cold store warehouses. The temperature has to be documented in all of these refrigerated facilities, as strict regulations apply to quality management both in the food processing and medicine industries.
Data loggers are usually placed at the ‘Critical Control Points’ (CCPs) of a cold storage room to enable any fluctuations in temperature to be detected and appropriate action to be taken. Critical places include doors or passages into other temperature zones within a warehouse.

Video Introduction