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The EE431 duct sensor is used for air temperature measurement in heating, ventilation and air conditioning systems. It can be installed either with mounting flange or via external mounting holes at the enclosure.

For temperature measurement in liquids the duct sensor EE431 is mounted with an immersion well. Various types of sensing elements such as Pt1000, NTC10k or Ni1000 are available. The innovative IP65 housing and the mounting concept allow for fast and easy installation.


  • External mounting holes
  • Bayonet screws

Mounting flange

  • Fixation via clamping
  • Special sealing

Immersion well

  • Innovative mounting spring

Typical Applications

  • Building automation
  • Process and climate control
  • Measurement in air and liquids

Données techniques

  • -40…110 °C
    -40…150 °C (Pt and Ni T-sensors)

    Measuring range passive output
  • two-wire

    T-Sensor connection
  • -40...110 °C duct sensor
    -40...150 °C immersion sensor

    Measuring range active output
  • ±0.3 °C

    Accuracy active output
  • -40...70 °C

    Working temperature electronics
  • IP65 / NEMA 4

    Protection class
  • 0-10 V or 4-20 mA

  • 24 V AC/DC


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