Aluminum Oxide Moisture Transmitter – HygroPro||

The HygroProII moisture transmitter is an intrinsically safe, compact, loop-powered display transmitter designed specifically to meet the demands of rugged industrial applications. With certified intrinsically safe electronics (when installed with appropriate associated apparatus) packaged in an IP66/IP67/Type 4X enclosure, the HygroProII is ideal for use in pipeline natural gas, petrochemical, power generation, and other industrial gas or hydrocarbon liquid applications.


  • Intrinsically safe
  • Ambient to ppb-level moisture measurement using next-generation aluminum oxide moisture sensor
  • Built-in temperature sensor for temperature compensation
  • Optional pressure sensor
  • Calibrations traceable to National Institute of Standards and Technology (NIST) or National Physical Laboratory (NPL) with the option of fully accredited calibration to ISO 17025
  • Complete programming capability via User Interface that consists of integrated display and 6-button keypad
  • Analog and digital outputs
  • HART communication over the 4 – 20 mA analog output
Operating temperature  : -4°F to 140°F (–20°C to 60°C)
Storage temperature  : -40°F to 158°F (-40°C to 70°C)
Operating pressure  : 5 mHg to 5000 psig (345 bar)
Enclosure  : Type 4X, IP 66 and IP 67


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