Input Values (Choose 2 Properties + Pressure or Altitude) Dry Bulb Temperature Wet Bulb Temperature % Relative Humidity Enthalpy of Dry Air Dew Point Humidity as Weight Ratio Altitude (feet or meters) Pressure (inches or mm) of Mercury (Hg) Pressure (psia or KPa)

Output Values (Display any 4 at one time) Dry Bulb Temperature Wet Bulb Temperature % Relative Humidity Enthalpy of Dry Air Dew Point Specific Volume of Dry Air Vapor Pressure (Mercury - Hg) PPM (weight) PPM (volume) Humidity as Weight Ratio