DewMaster Chilled Mirror Hygrometer

A fast, multi-function, high precision chilled mirror hygrometer for continuously monitoring the dew/frost point temperature, parts per million water vapor by volume or percent relative humidity in gas streams.

The DewMaster is a laboratory grade, high precision, field proven instrument with multiple available sensor configurations and wide applicability to fit all budgets.


  • Measurement Ranges and PPMv Ranges:
    0 to 100% RH with all sensors, non-condensing conditions
    0 to 999,999 PPMv with all sensors, non-condensing conditions


  • Accuracy:
    ±0.2°C (0.36°F) dew/frost point standard
    ±0.1°C (0.18°F) dew/frost point optional
    ±0.5% of full scale pressure


  • Air Temperature Sensor Range:
    -100 to 250°C (-148 to 482°F)
    ±0.1°C accuracy


Please refer to product’s datasheet (PDF)


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