Humidity and temperature Source
HygroGen2 - Transportable Humidity & Temperature Reference By Rotronic
HygroGen2 is a transportable humidity and temperature generator suitable for calibrating up to five RH instruments simultaneously over 0...60°C and 5...95%rh ranges.
Transportable chamber ideally suited to the task of generating user definable humidity and temperature values for testing sensors and dataloggers against humidity and temperature reference devices.