DEWTRAK II – MO (Motor Octane)

The Edgetech Instruments Model DewTrak II dewpoint/humidity transmitter is an optical chill mirror hygrometer designed to continuously measure the moisture content in gases. The instrument is powered by 24Vdc.

The DewTrak II uses the chilled mirror dewpoint temperature condensation principle to determine the water vapor concentration in gas mixtures, and a platinum resistance thermometer to accurately measure that temperature. Outputs include 4 to 20mA, 0 to 5 Vdc, or 0-10Vdc and an RS232 serial port as well as electrically isolated relay contacts.

Technical Brochure



  • 4 wire PRT measurement for Dewpoint and AT (optional)
  • ±0.2°C Accuracy for both Dewpoint and Temperature
  • Long term stability and repeatability
  • RS232, bi-directional, Serial Output
  • Electronics housed in IP65 enclosure (Wall Mount)
  • Aluminum housing for other configurations
  • 2 analog outputs (4-20mA / 0-5Vdc to 0-10Vdc selectable)
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