Model DX Chilled Mirror Hygrometer Sensor

The Model DX primary method chilled mirror dew/ frost point sensor is a direct insertion hygrometer sensor with an integral PRT temperature sensor, wide operating range and superior temperature stability. The new DX can be inserted into a gas process stream or used to monitor the local environment. With its integrally mounted temperature sensor, a single penetration reduces installation cost …


  • Direct insertion expands Edgetech Instruments sensor choices for easy installation
  • Integrally mounted PRT temperature sensor reduces installation cost and improves RH accuracy
  • Active sensor temperature compensation and isolation eliminate drift
  • Compact design reduces space needed for installation
  • Integrated micro aspirator option for faster response in static environments
  • Integrated filter options for use in dirty environments
RH-CAL Portable Humidity Calibrator Application Note

RH CAL Portable Relative Humidity Calibrator

The RH CAL is a programmable humidity calibration system that is at home in the metrology lab or in the field, performing on-site, NIST traceable humidity calibrations. The system provides very high accuracy for both relative humidity and temperature. Unlike other calibration systems, the RH CAL does not need compressed air or a water connection to operate, which allows the …


  • Based on Edgetech Instruments field proven chilled mirror sensor technology
  • A completely self-sufficient and portable humidity calibration system
  • Temperature and relative humidity controlled independently for custom humidity generation
  • High accuracy relative humidity and temperature control
  • Automatic correction for sensor mirror contaminants
  • Certified against NIST traceable standards in an ISO/IEC 17025 accredited laboratory
PDM75-X3 Portable

PDM75-X3 Portable, Industrial Duty Hygrometer

The Model PDM75-X3 is a field portable dewpoint hygrometer that integrates the accuracy and reliability of the Edgetech Instruments chilled mirror sensor with the convenience and ruggedness required for field use. It features drift-free accuracy, NIST traceability, low maintenance, high durability and ease of use in a portable package. The Model PDM75-X3 has all the standard features of the Edgetech …


  • Based on the Edgetech Instruments DewMaster Hygrometer
  • Chemically resistant, primary method dew/frost point sensor
  • Drift free and certified against NIST traceable standards
  • Best in class air cooled temperature depression
  • Wide measurement ranges from -70°C to +70°C dew/frost point temperature
  • Locally or remotely mounted sensor options
  • Automatic Balance Control for optics contaminants correction
  • Rugged, high impact portable case
  • Multiple interfaces
  • Sampling options for positive or negative pressure