No Chance of Mould Growth or Rust Formation

High-Precision Humidity Measuring Devices

Our Products for Humidity

HYGRASGARD humidity sensor devices and HYGRASREG humidity controllers will never let you down when mould and rust formation must
be prevented. With an accuracy up to 2% r.H., they will always keep you
on the safe side. The application range of our humidity transducers spans from standard uses in facility automation to the most demanding cleanroom installations.

Application Areas

Refrigeration, air-conditioning, ventilation and cleanroom engineering, food and pharmaceutical industry, hospitals, production facilities and museums, laboratories, offices, EDP rooms and control cabinets, greenhouses and meteorology.


  • Broad range of application areas
  • Minimum measuring and control tolerances
  • Consistent look & feel
  • Active and switching outputs
  • Interconnective Modbus und EtherCAT P versions
  • Optionally with M12 connector
Compact and Cost-Effective

Duct Humidity Sensors

Highly Precise and Rugged

On-Wall Humidity Sensors

Humidity Measuring Transducers

Duct Humidity Sensors also in
Facility & Industrial Fieldbus Versions

Digital humidity sensor devices with integrated temperature sensor ensure highly accurate measuring results thanks to small hysteresis and long-term stability. The modular design of our Tyr 2 housing family adds versatility. Both the high-impact plastic housing and the extremely rugged stainless steel housing are available for electrical connection using cable glands or M12 connectors.

Also available in EtherCAT P capable and
multifunctional Modbus versions.

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Humidity Measuring Devices in Focus


Electronic on-wall and duct hygrostats
Discover now


Interconnective humidity sensors in various different versions
Jump to Modbus humidity sensors


With unique S+S patented
prodynamic cross-convection
Discover our patented sensors


Rugged humidity sensors for extremely demanding requirements
Go to full stainless steel assortment