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PPM1 Trace Moisture Analyzer

Product Description

The Edgetech Instruments Model PPM1 is a trace moisture analyzer designed specifically for monitoring moisture levels in dew point and PPM units. This trace moisture analyzer utilizes an electro-chemical (P205) sensor in combination with a proprietary semi permeable diffusion membrane.

The principle of operation applies the Faraday’s Law of Electrolysis which measures the dissociation current making it a fundamental measurement of the moisture present. The PPM1 is ideally used in relatively clean, dry, inert gas applications.


  • Sensitivity below 1ppm
  • Fast response
  • Long sensor life
  • Low cost
  • Fundamental measurement of moisture content
  • Displays / outputs—dew point (C/F) and PPM values


  • Air Separators
  • Medical Gas
  • Pharmaceuticals
  • Semiconductor