RH350 - SuperHeat Psychrometer Humidity, Wet bulb, Dew Point, Air Temperature plus External Probe Temperature measurements
RH355 - SuperHeat Psychrometer Kit Includes RH300, two Type K bead wire temperature probes, 33% and 75% calibration bottles, RS-232 cable, 4 AAA batteries and carrying case
EA25 - EasyView™ Hygro-Thermometer and Datalogger Dual display of RH, Temperature, Dew Point and Wet Bulb with datalogging feature that stores up to 99 manual readings for display recall or up to 15,000 readings for PC download