HygroPalm 32 handheld relative humidity and temperature instrument Kit Psychrometric calculations of Dew point, wet-bulb temperature, mixing ratio, enthalpy, water vapor content and water vapor density. Includes HC2A-S Probe, E2-02A Cable, HW5-CODE, micro USB cable, soft case, plus Calibration kit (ER-15 and EA35-SCS) ...