473 Dew Point Mirror

The 473 is the lowest cost MBW dew point instrument, yet it has similar performance and the same user interface as our high end instruments.

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The 473 Dew point Mirror features cable mounted dew point measuring heads that allow the user to measure directly within the application environment and includes a temperature probe as standard. Using both measured variables, the 473 is able to calculate, display and output relative humidity. As an option, the 473 can be specified with a barometric pressure sensor. Three different measuring heads with 2 m connecting cables are available (lengths up to 10 m can be provided on some versions on request).

All 473 instruments are delivered as complete measurement sets that include:

  • 473 display instrument
  • Measuring head
  • Measuring head cable
  • Pt-100 temperature probe and cables
  • Factory calibration certificate*
  • IP65 transport case

In combination with the T12 multichannel thermometer, the 473 is particularly well suited to climatic chamber validation projects.

* For a small additional cost, the factory calibration can be upgraded to ISO17025 accredited calibration


  • Highly precise chilled mirror dew point technology
  • Cable mounted dew point and temperature measurement
  • Aspirated and direct insertion measuring heads
  • Barometric pressure measurement options
  • Intuitive color touch screen user interface
  • User verifiable calibration
Key Specifications

  • Frost/dew point range: -30 to +99 ̊C
  • Temperature: -50 to +100 ̊C
  • Temperature with T12: -200 to +250 ̊C
Typical Applications

  • Climatic chamber validation and calibration
  • Weather station calibration
  • RH generator transfer standard
  • Engine test cells