Humidity Measurement – From the Sensing Element to the Humidity Transmitter

E+E Elektronik has been developing and producing humidity sensing elements with thin-film technology since 1990. Ongoing fundamental development work, state-of-the-art production technology and extensive calibration expertise result in reliable products for high-precision humidity measurement. The E+E portfolio ranges from a miniature humidity sensing element and high-end humidity transmitters to a professional humidity calibration system.

  • Proven quality and reliability

Thanks to many years of experience in sensor production and thin-film technology, humidity sensors from E+E Elektronik now represent the highest quality and reliability.

  • Calibration laboratory for maximum accuracy

E+E Elektronik operates an in-house, accredited calibration laboratory. The company’s in-depth knowledge and ongoing development in the field of humidity calibration is reflected in the high precision of E+E humidity sensors.

  • The perfect solution for every measurement

Humidity sensors and humidity transmitters must meet different requirements, depending on the application and industry. E+E Elektronik offers an extensive portfolio of measuring devices for a variety of starting points and environmental conditions.

  • Open to customer-specific solutions

As well as development, element production in our own clean room plus assembly and calibration of the humidity transmitters takes place at the E+E site in Engerwitzdorf. This allows E+E to uphold the highest quality standards and means that customer-specific solutions can be quickly implemented.

Products Range

Passive Humidity Sensing Elements

High accuracy humidity sensors for mass applications such as automative or home appliances.

Digital Humidity Sensing Elements

High accuracy digital humidity sensing elements for mass applications.

Humidity Calibrator

High-end, dual-pressure humidity calibrator traceable to international standards.

Humidity Data Loggers

Humidity, temperature, CO₂ and pressure as well as analogue signals.


Humidity Sensors for Industrial Applications

Highest accuracy over a wide T range. Versions for pressure rated, intrinsically safe, chemically polluted, meteorogical or high humidity applications.

Humidity Hand-held Meters

With logging capability and a wide choice of intelligent, interchangeable, probes, for a multitude humidity applications.

Humidity Sensors for HVAC

Accurate, reliable and long term stable humidity and temperature measurement in building automation and climate control, possibly customised.

Humidity Modules and Probes

Accurate and long term stable humidity and temperature measurement in cost-effective, compact design.

Humidity Wireless Sensors

High quality wireless transmitters for humidity, temperature and CO₂ measurement.

E+E Humidity Transmitters and Humidity Sensors: The Right Solution for Every Challenge

    E+E humidity transmitters accurately measure the relative humidity and are designed for use in a variety of areas. Industry requirements range from cost-effective solutions and easy integration to reliable monitoring of complex industrial processes and demanding air conditioning technology.

    Humidity Transmitters for Demanding Industrial Applications

    Industrial production processes and demanding air conditioning technology call for high-precision humidity measuring instruments which perform reliably, even under difficult conditions. E+E develops high-end humidity transmitters which meet these strict requirements.

    • Can be used in a variety of applications thanks to their wide temperature range of -40°C to 180°C.
    • Unique sensor protection (E+E proprietary coating) for use in particularly harsh environments.
    • Sensor and probe heating for top performance under high humidity and chemical pollution.
    • Product versions: Metal or polycarbonate enclosure with remote probes, display, analogue and digital outputs.
    • Calculation of derived physical quantities (dew point, absolute humidity, etc.)


    E+E humidity transmitters for industrial applications »

    Humidity Sensors for Building and Air Conditioning Technology

    Specially optimised humidity sensors for the HVAC sector from E+E Elektronik are all about cost effectiveness and easy handling.

    • Various designs for wall and duct mounting.
    • Quick mounting thanks to installation-friendly enclosure.
    • Easy integration into a building management system via digital interfaces (Modbus RTU/BACnet protocol).
    • Subject to quantity, can be supplied as OEM version in customer-specific design.


    E+E humidity sensors for HVAC applications »

    Humidity Modules and Probes for OEM Applications

    E+E Elektronik produces humidity modules and probes which can be used in a variety of applications and are particularly interesting for OEM applications (e.g. snow cannons, climate chambers, dataloggers) due to their easy system integration. They offer a high level of measuring accuracy, compact designs and low power consumption. Modules and probes for humidity measurement are also used in agriculture, meteorology and building technology.

    • Outstanding measuring performance in harsh environments thanks to sensor coating and encapsulated measurement electronics
    • Can be used in high humidity areas and under chemical loads, thanks to heated humidity and temperature sensing element and Automatic Sensor ReCovery (ARC) function
    • Wide temperature range for a broad spectrum of applications
    • Analogue and digital outputs
    • Robust design: Stainless steel or polycarbonate enclosure

    E+E humidity modules and probes »

    Humidity Transmitters and Humidity Sensors for Meteorology

    E+E humidity sensors for meteorological applications deliver highly accurate measurements even under difficult operating conditions. The humidity transmitters have been developed specifically for use outdoors. Thanks to innovative features such as sensor and probe heating or the E+E protective coating, they perform reliably, even under particularly harsh conditions and weather influences such as wet weather, freezing or high humidity.

    • High level of measuring accuracy
    • Outstanding long-term stability
    • Quick response times


    Plus, renowned meteorological institutes, such as the German Deutscher Wetterdienst (DWD), the Dutch Koninklijk Nederlands Meteorologisch Instituut (KNMI) or the Austrian Zentralanstalt für Meteorologie und Geodynamik (ZAMG) have relied for years on humidity measuring technology from E+E Elektronik.

    E+E humidity sensors for meteorology »

    Digital and Capactive Humidity Sensing Elements

    Millions of high-quality E+E humidity sensing elements are used in the automotive industry, for example. Modern, in-house clean rooms offer capacity to produce large quantities for mass applications. The focus is on ensuring the highest quality standards and taking customer-specific requirements into account.

    • Unique contamination protection
      The E+E prorietary coating – a special protective layer – protects the active sensor surface from contamination and corrosion. This leads to outstanding measuring performance and a long service life, even under harsh environmental conditions.
    • Variety as standard
      The product range covers pre-calibrated, capacitive humidity sensing elements, and special, heated sensing elements for radiosondes to digital humidity sensing elements with various digital interfaces.
    • Individual solutions
      As a flexible partner, E+E also works on customer-specific sensor developments to suit individual requirements.


    Digital E+E humidity sensing elements »

    Capacitive E+E humidity sensing elements »

    Moisture in Oil Measurement

    Just like humidity measurement in air, the moisture content in oils can also be determined. E+E Elektronik’s moisture in oil measuring instruments can be used for online monitoring of the moisture content in lubrication, hydraulic and insulation oils.

    E+E humidity sensors for oil moisture »

    Wht Choose E+E for Humidity Measurement?

    E+E is one of the world’s leading manufacturers of humidity sensors. Production takes place at the company’s Austrian headquarters in Engerwitzdorf, using state-of-the-art production technology. A strict quality management system ensures that E+E humidity transmitters are of high quality.

    30 Years of Quality from Austria

    E+E Elektronik produced its first humidity sensors in 1990 and shortly after became one of the first Austrian companies to be awarded the quality management standard ISO 9001. Thus, E+E’s commitment to quality was firmly rooted in the company right from the start.

    From the Humidity Sensing Element to the Humidity Transmitter

    E+E’s own, high quality sensing elements form the basis for all E+E humidity transmitters. Together with tailor-made electronics and outstanding calibration expertise, they enable high-accuracy measurement of relative humidity and temperature.

    Accredited Calibration Laboratory and Designated Institute of the Austrian Federal Office of Metrology and Surveying

    E+E operates an accredited calibration laboratory – according to EN ISO/IEC 17025 – in Engerwitzdorf. Humidity calibrations in the range 0 to 98 % RH at a temperature of -70 to 200 °C (-94 °F to 392 °F) can be carried out here. The E+E calibration laboratory also performs accredited calibration for the physical quantities dew point, air velocity, mass flow, temperature, CO₂ and pressure.

    As a Designated Institute of the Austrian Federal Office of Metrology and Surveying (BEV), E+E Elektronik is responsible for the maintenance of the national etalon for humidity and air velocity. E+E Elektronik is thus the highest meteorological authority of the country for these physical quantities.

    Calibration service for humidity sensors at the E+E calibration laboratory » 

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