testo 176 – Absolute Pressure Data Logger

  • Continuous measurement and documentation of absolute pressure
  • Record up to two additional humidity and temperature values simultaneously with optionally connectable probes
  • Large measurement data memory for up to 2 million measurement values, battery life of up to 8 years
  • For data evaluation on a PC, a selection of three software versions is available, basic software available as a free download

Click Here  to download the testo 176 – Absolute Pressure Data Logger data sheet. 


When ambient conditions, for example in a laboratory, need to be documented securely and highly accurately, choose the data logger testo 176. It has an integrated sensor which measures absolute pressure precisely in the range from 600 mbar up to 1100 mbar.

Up to two temperature/humidity probes can be additionally connected to the 5-channel data logger testo 176. A wide selection of probes is available to you for this purpose.
The lock included in delivery protects your loggers from unauthorized access.

Security and convenience at all levels

The testo 176 data logger for absolute pressure, temperature and humidity guarantees high data security and reliable measurement results on the basis of modern measurement technology.

When temperature/humidity probes are connected, the data logger also shows the dewpoint in the display, in addition to the current measurement values. You can read programmed limit values, min. and max. values, limit value violations as well as the remaining battery life easily from the large display. It is therefore not necessary to read out the data logger to a PC in order to gain a quick overview.

Thanks to the large memory for 2 million measurement values, and the battery lifetime of up to 8 years, you can read out the data much less often, even at a shorter measurement intervals. The standard battery (AA) can be easily exchanged at any time by the user.

Programming and evaluation of the data logger

For the purposes of programming and readout of your data logger, as well as the evaluation of the measurement data on a PC, you can choose between three software versions:

  • ComSoft Basic software – available for free download – for the fast programming of the data logger as well as easy data analysis
  • ComSoft Professional software – optionally available – offers you different possibilities for the detailed analysis of absolute pressure, temperature and humidity values
  • ComSoft CFR 21 Part 11 software – optionally available – optimum for the special requirements of the pharmaceutical sector according to CFR 11 Part 11

To program the data logger, you require a USB cable which is not included in delivery. Transfer of the saved measurement data from the data logger to a PC can also take place by USB cable or by an SD card. You can order both as optional accessories.

Delivery Scope
testo 176 , 5-channel data logger with internal pressure sensor (absolute pressure) and external probe connections (NTC/ capacitive humidity sensor). Including wall bracket, battery and calibration protocol.

Technical Data:
Temperature – NTC
Measuring range: -20 to +70 °C
Accuracy: ±0.2 °C (-20 to +70 °C / ±0.4 °C (Remaining Range)
Resolution: 0.1 °C

Humidity – Capacitive
Measuring range: 0 to 100 %RH*
Accuracy: ±2 %RH at +25 °C (2 to +98 %RH)
Resolution: 0.1 %RH

* Not for condensing atmospheres. For continuous applications in high humidity (>80 %RH at ≤30 °C for >12 h, >60 %RH at >30 °C for >12 h), please contact us via our website.

Absolute Pressure
Measuring range: 600 to 1100 mbar
Accuracy: ±3 mbar (0 to +50 °C)
Resolution: 1 mbar

General technical data
Dimensions: 103 x 63 x 33 mm
Operating temperature: -20 to +70 °C
Protection class: IP54
Channels: 1 internal; 4 external
Battery type: 1 x Lithium (TL-5903)
Battery life: 8 years at 15 min. meas. rate
Memory: 2,000,000 measuring values
Storage temperature: -40 to +85 °C

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Home > testo 176 – Absolute Pressure Data Logger

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Ireland, X91 P224

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