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Humidity is the amount of water vapor (kg) contained per unit volume (m3) of the gas mixture. In a gas mixture the water vapor generates a certain partial pressure that is part of the total barometric gas pressure. The vapor pressure can only rise to its saturation limit, which is determined by the temperature. Thereafter water is given off in liquid form (dew). The maximum pressure is called saturation pressure and is temperature dependent. The temperature dependency is, however, not included in the term of absolute humidity.



Best sellers for humidity and temperature measurement:

  1. HC2-S

    HC2-S

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

    HC2-S3

    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
  3. HC2A-S

    HC2A-S

    The HC2A-S / HC2A-S3 is the most versatile probe from ROTRONIC and forms the basis of the product portfolio. It measures humidity and temperature and calculates the dew/frost point. Learn More
  4. HC2A-S3

    HC2A-S3

    The HC2A-S / HC2A-S3 is the most versatile probe from ROTRONIC and forms the basis of the product portfolio. It measures humidity and temperature and calculates the dew/frost point.

    Learn More
  5. HygroFlex3 - HF3 (R-Type)

    HygroFlex3 - HF3

    R-Type / S-Type
    Measures relative humidity and temperature and calculates the dew/frost point in offices and rooms where good looks play a role.

    W-Type / D-Type
    Measures relative humidity and temperature and calculates the dew/frost point in HVAC applications focused on relability and repeatability.

    Learn More
  6. HygroFlex5 - HF5

    HygroFlex5 - HF5

    The HygroFlex5-series is the latest development in transmitters for humidity, temperature and dew point. One outstanding feature of this innovative product is the possibility to output any psychrometric calculation as an analogue signal. Learn More
  7. HygroFlex5-EX - HF5-EX

    HygroFlex5-EX - HF5-EX

    The new HygroFlex5-EX series is the latest development in two-channel transmitters for the exact measurement of humidity and temperature in explosive atmospheres. This device conforms to the latest international standards. Learn More
  8. HygroFlex8 - HF8 (Wallversion with display)

    HygroFlex8 - HF8

    Measures relative humidity, temperature and all calculated (psychrometric) parameters in the fields of HVAC, industry and pharmaceuticals. Learn More
  9. HygroGen2

    HygroGen2 - HG2-S

    Portable humidity and temperature generator to calibrate humidity and temperature measuring instruments (multi-point calibration) Learn More
  10. HygroGen2

    HygroGen2 - HG2-XL

    Humidity and temperature generator to calibrate humidity and temperature measuring instruments (multi-point calibration) Learn More
  11. HygroLog HL20 (with display)

    HygroLog HL-1D

    Humidity and temperature data logger. Compact, dependable and inexpensive. Learn More
  12. HygroLog HL-20 (with display)

    HygroLog HL-20

    The compact data logger for humidity and temperature measurement offers high precision and reliability at a reasonable price. The HL-20 series is easy to use and deployable in a wide range of applications. Thanks to its integrated batteries, the HL-20 works completely independently and offers its users maximum flexibility. Learn More
  13. HygroLog HL-NT2 (with display)

    HygroLog HL-NT2

    High-end loggers HL-NT2 series. Learn More
  14. HygroPalm - HP23-A

    HygroPalm - HP23-A

    The HygroPalm23-A is the high-end product in our range of handheld instruments. Apart from measuring humidity and temperature, it also calculates all psychrometric parameters and offers various additional functions. The measurement results can be recorded continuously and these separated simply using the batch function. All ROTRONIC transmitters in the Airchip 3000 series can be adjusted with the HP23-A via a service cable. Learn More