Data loggers with temperature and humidity

Testo Humidity data loggers, allow steadfast and continuous monitoring, facilitating easy documentation of measurements for analysis, satisfying an essential need in the collection of data.

Testo’s devices are regularly used within many scientific and technological research and development arenas in laboratories and testing centres worldwide. All our versatile devices have set calibration standards, which make it easy to ensure that the measurements produced are extremely accurate.

With the current range of 14 humidity data loggers, Testo offers the right solution for various application.

Best seller: testo 175 H1

Products for humidity/ temperature measurement and documentation

Humidity data logger

Humidity data logger testo 176 H1
Humidity data loggers for monitoring humidity and temperature.

With connectable probes

Data logger for humidity measurement
Humidity data loggers with probe connections for individual requirements.

Transport logger

Humidity data loggers for transport
USB data logger for monitoring humidity during the transport.

Wifi data logger

Wifi data loggers for humidity
Wifi data loggers for flexible monitoring of humidity by wireless LAN.

The search for a suitable data logger is based on the different features the instrument needs to have:

In order to select the best data logger for you application the following saliant points must be considered. 

  • type of measurement
  • combination of different ambient data
  • service life for battery or rechargeable battery
  • accuracy in terms of the measurement results
  • repetition of measurement results
  • transmission path – USB or WiFi


Climate data logger – important instrument features

The question as to which features a climate data logger should have depends on the planned field of application. If you want to use the instruments to monitor the environment around sensitive goods, a cold chain or also a transport operation, then precise measuring values are essential. If you are planning to check rooms, such as those in schools or also in offices, small discrepancies in terms of the measuring values are less serious. The accuracy of an instrument can therefore already limit your choice.

Data storage and repeatability of measurements are particularly important, regardless of the field of application. Storage should still be ensured, even when the instrument no longer has a power supply over a relatively long period of time. This is the only way to ensure the possibility of continued analysis in the future. In this context, it is also worthwhile having a look at the rechargeable battery's service life during your search. You should also check whether there is an acoustic warning telling you when the rechargeable battery needs charging.

Data logger for monitoring humidity in the archive

You are under a great deal of pressure when it comes to monitoring certain areas. The measurement results must be controlled and adjusted within a short time, so that no damage to goods and products can occur. In this respect, data loggers can take the pressure off, because they measure the values accurately and warn you via acoustic signals if limits are exceeded. The transmission of data to a terminal device can work in different ways. There is for example a hygrometer data logger in the form of an instrument with USB or WiFi. The use of a climate data logger which is integrated into an overall data monitoring system is particularly effective. The complex system is designed in such a way that the data can be sent directly to a preferred terminal device and analyzed there. This naturally has some advantages which you can benefit from in terms of the moisture datalogger:

  • significant time saving thanks to easy overview
  • quick data transmission
  • setting of limit values
  • acoustic signals

Additional equipment for the climate data logger

The climate data logger is often very well equipped. There is thus the data logger for temperature, humidity and air pressure. However, it may make sense to use additional instruments in combination. The measurement of gas concentration in the rooms may therefore be sensible in some areas. CO and also CO₂ data loggers are suitable for this. In some cases, these are also available in combination with temperature measurements. Looking at exposure to UV radiation is often underestimated, but nevertheless important. UV radiation can have a lasting effect on the quality of goods and raw materials. A UV data logger enables you to keep an eye on these values. Strong impacts or also movements, as is the case with transportation, are often problematic for sensitive products. The shock data logger can record how strong the impacts have been. This enables you to estimate how great the possible damage might be.

  • There are data loggers for different ambient data
  • Display of UV exposure is possible
  • Measurement results can be compared by regular measurement
Data loggers for temperature, humidity, CO₂ and UV

Ordering Testo humidity data loggers online

Testo's humidity data loggers can measure different types of moisture. Both material moisture and humidity can be very well monitored in this way. Here, you can choose from a variety of designs. You have the option of ordering a data logger for temperature and humidity which gives a regular overview of the evolution of the values.

There are also differences in terms of the size and design of the models. The USB temperature / humidity datalogger is just as practical as models with WiFi.

Humidity measurement with data logger in the conservatory

USB data logger for humidity and temperature

A USB data logger is easy to handle and has the best possible equipment. It is designed for fast charging and can thus also be used for longer periods of time. In addition, it has a configuration file and a calibration certificate. Both these features are particularly helpful if you want to transmit the data to the terminal device and collate them in a PDF there to ensure fast analysis.

Humidity datalogger with WiFi

A WiFi data logger is another version and is very suitable when you have to equip the rooms with several loggers due to the size. Transmission via wireless LAN means you do not need to read the instruments out individually. You profit from the following advantages here:

  • cost saving
  • use across several rooms possible
  • transmission directly to the terminal device
  • time saving

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