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HD21AB17 IAQ Monitor

The instruments simultaneously measure the parameters:

  • Carbon Dioxide CO2
  • Carbon Monoxide CO
  • Atmospheric Pressure

The HD21AB17 instrument also measures:

  • Temperature
  • Relative Humidity

and it calculates:

  • Dew Point
  • Wet Bulb Temperature
  • Absolute Humidity
  • Mixing Ratio
  • Enthalpy