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The EE23 is a cost optimised transmitter for industrial and high-end HVAC applications up to 120°C (248°F). Relative humidity and temperature are accurately measured and dew/frost point temperature precisely calculated.

Various models are available including wall, duct, remote probe as well as a version with miniature remote probe for applications with limited space. The three-part design of rugged enclosure in polycarbonate or aluminium allows easy mounting and replacement.

The measurands are available on two analogue outputs and an optional relay output. The optional proprietary coating protects the sensor elements against corrosive and electrically conductive pollution. Field adjustment can be easily performed with push buttons.

Key Features

  • Measurands: humidity (RH), temperature (T), dew point (Td), frost point (Tf)
  • Rugged enclosure in polycarbonate or aluminium
  • Flexible enclosure concept for easy mounting and unit exchange
  • Two analogue or alarm outputs
  • Wall, duct, remote probe and miniature remote probe types available
  • Wide choice of filter caps according to application
  • Optional connector for power supply and outputs
  • Optional LCD display
  • Optional integrated power supply
  • Optional sensor coating for polluted environments
  • Easy field adjustment by the user

Typical Applications

  • High-end HVAC climate and test chambers
  • Process technology
  • Dryers clean rooms
  • Green houses
  • Storage rooms
  • Meteorology

Technical data

  • 0...100% RH
    -40...120 °C (-40...248 °F)

    Measuring range
  • ±1.3% RH
    ±0.2 °C (±0.36 °F)

  • 0-5/10 V, 0/4-20mA

  • 24 V AC/DC


Product inquiry

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  • HA010101

    Membrane filter


    Material: PC
    Filter: PTFE membrane
    Pores size: 1 µm
    Length: 34mm (1.34")


    Very good protection against fine dust

    T range: -40...80°C (-40...176°F)
    Response time t10/90: 15s


    Typical applications

    Building automation
    Dusty environment

    Suitable for Products: