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Testo 175 H1 - Data Logger

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Product Description

The Testo 175H1 is a compact professional data logger for monitoring of Temperature, Humidity & Dew Point.The external temperature & humidity probe creates faster reaction times in comparison to other temperature & humidity data loggers that are available in the market.

The 175 H1 data logger measures, monitors and logs the temperature and relative humidity in buildings and closed rooms. The logger comes with an external humidity sensor (stub) for shorter reaction times and a lock to prevent it from being easily stolen or tampered with.


Security and comfort on all levels

The 175 H1 ensures a high level of data security and reliable measurements based on leading-edge technology. The logger has a super-size memory that can save up to 1 million readings and an extended battery life of up to 3 years. This gives you the freedom to read out the data at longer intervals, even when the measuring cycles are shorter. The triple AAA batteries included in the scope of supply can be easily replaced by the user.


Programming and analysis with the temperature data logger

You need software for programming and reading your temperature data logger and analyzing measurement data on the PC. We offer three different software versions for you to choose from:

ComSoft Basic software – available as a free download – enables fast programming of the data logger and easy measurement data analysis

ComSoft Professional software – available as an option – offers a variety of possibilities for detailed analysis of measurement results

ComSoft CFR 21 Part 11 software – available as an option – can be used for special requirements according to CFR 21 Part 11 in the pharmaceutical sector

Whats included: One Logger, usb cable, wallholder, lock, batteries, calibration conformity certificate and instruction manual.

Technical Data

Measuring range -20 to +55 °C ( Internal / Ambient Sensor )
  0 to 100 %RH
Memory  1 Million Readings 
Accuracy ±0,5 °C (-30 to +70 °C) -Temperature 
  ±2 %RH (2 to 98 %RH) at +25 °C - Humidity 
Resolution 0.1 °C - Temperature 
  0.1 % RH - Humidity
Dimensions 149 x 53 x 27 mm

Humidity/temperature logger, 2 channels, with internal sensors, wall holder and calibration protocol (please order calibration certificates (DKD,350) separately)

The affordable testo 175-H1 humidity/temperature logger monitors ambient humidity and temperature fluctuations efficiently and unobtrusively.

    * Humidity sensor guaranteed long-term stable
    * Memory for up to 3700 readings (testo 175-H1)
    * Memory for up to 16000 readings (testo 175-H2)
    * Data safe even when battery is spent
    * Fast documentation on infrared printer, 6 lines/s
    * Data transfer to PC or Notebook via interface or testo 580 data collector
    * Large display (testo 175-H2)
    * testo 175-H1 without display. Data is printed on the fast printer.
    * Data analysis with easy-to-use Windows® software
    * w/o display
    * Memory up to 3,700 measurement values
    * Measurement rate 10 sec to 24 h freely selectable
    * Battery life more than 2.5 years*


Storage temperature -40 to +70 °C
Operating temperature -10 to +50 °C
Battery type Lithium battery
Weight 80 g
Dimensions 82 x 52 x 30 mm
Probe type NTC
Meas. range -10 to +50 °C
Accuracy ±0.5 °C
Resolution 0.1 °C
Probe type humid. sensor, cap.
Meas. Range 0 to +100 %RH
Accuracy ±3 %RH
Resolution 0.1 %RH


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