The use of water-based paints requires precise control of the environment in which they are applied. Reliable sensors for measurement of humidity and temperature are prerequisite for this.

Paint stability

Paint manufacturers run accelerated weather simulation trials to test paint stability, with relative humidity being a key factor. The tests are conducted primarily in environmental chambers, but also under outdoor weather conditions, where meteorological probes are used.

Spray booth control

Water-based paints must be processed under controlled environmental conditions so that they dry properly and a perfect finish is obtained.

Quality assurance of powder paints

The HygroLab is used to measure water activity/equilibrium relative humidity in laboratory applications. The handheld instrument with insertion probe is ideal for use in production areas. 

Important parameters



Water activity



  1. HC2-AW - AW probe

    For water activity measurements in bulk materials such as flour, grain, spices, etc. For solid and pasty products such as meat, sausage as well as oils, fats, etc. Learn More
  2. HygroFlex5 - HF5 - HVAC TRANSMITTER

    The HygroFlex5-series is the latest development in measurement transmitters. Measures humidity, temperature and dew point. This measuring device calculates all the psychrometric parameters in the fields of pharmaceuticals, food, HVAC and across Industry. One outstanding feature of this measurement device is the possibility to output any psychrometric calculation as an analogue or digital signal. Learn More
  3. HygroLab C1

    The Hygrolab C1 is no longer available. HERE you will find the innovative successor device with a large touch screen and 4 USB ports.

    Learn More
  4. HC2A-S - Humidity Probe

    The HC2-S / HC2-S3 is the most versatile probe from ROTRONIC and forms the basis of the product portfolio. It measures humidy and temperature and calculates the dew/frost point. Learn More
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