• Single-probe input
  • AirChip3000 Technology
  • Uses Hygroclip2 probes
  • Accuracy from ±0.8 %RH to ±1.5 %RH depending on probe
  • Clear backlit graphic display
  • Ergonomic and robust ABS housing

This product requires a HygroClip2 Probe which is not included.


The Rotronic HygroPalm 22 handheld humidity meter is the latest development in handheld measuring instruments for relative humidity, temperature and dew point. Based on AirChip3000 technology, the Rotronic HygroPalm 22 achieves a degree of accuracy not seen before (±0.8 %RH to ±1.5 %RH depending on probe) as well as outstanding repeatability, auto-diagnostics and auto correction along with the ability to perform all psychrometric calculations.

Rotronic HygroPalm 22 handheld humidity meters utilize HygroClip 2 probes which are available in many models to suit specific applications, from simple plug-in probes for use with a handheld instrument or data logger to a more sophisticated cable probe for high temperature and other special applications.

AirChip3000 Technology

Both the HygroPalm 22 humidity meter and HygroClip 2 probes incorporate AirChip3000 technology. The intelligence of AirChip3000 technology enables advanced sensor diagnostics. Humidity and temperature readings are compensated over 30,000 reference points. Should the sensors deviate from factory defined parameters, measurement values can be compensated automatically and a digital alarm triggered. AirChip3000 technology also includes a data logging features that allows up to 2,000 measurement values to be stored within the probe. Additionally, the user is able to configure the measurement interval, set alarm limits, scale the output signal and download data using optional Rotronic HW4 software.

Applications for the Rotronic HygroPalm 22

  • Food and pharmaceutical industry
  • Printing and paper industry
  • Meteorology
  • Agricultural
  • Climatology