MDM300 | Advanced Dew-Point Hygrometer

MDM300 | Advanced Dew-Point Hygrometer


  • Repeatedly fast measurements at low pressure in less than 15 minutes for T95 down to -60°C dew point (-76°F dew point)
  • Higher pressure measurements possible – up to 35 MPa (350 barg / 5076 psig)
  • Long battery life: up to 48 hours of typical use between charges
  • Intuitive application kits allow quick and straightforward connection to your sample point
  • Durable, yet easy to handle and operate: designed for use in industrial environments
  • Lightweight: less than 1.5kg (3.31lbs)
  • 13 point traceable calibration certificate



The MDM300 uses Michell’s highly developed ceramic impedance sensor, which is constructed using state-of-theart thin and thick film techniques. Operation of the sensor depends upon the adsorption of water vapor into a porous non-conducting “sandwich” between two conductive layers built on top of a base ceramic substrate. The active sensor layer is very thin – less than one micron and the porous top conductor that allows transmission of water vapor into the sensor is less than 4×10-8 inches. The resulting sensor responds rapidly to changes in moisture – both in detecting moisture and also when being dried. It is very rugged and gives ±1.8°F (±1°C) dew point accuracy coupled with excellent long-term reliability and stability.

Product Specification


Detailed Product features and Specification


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