This was a great tool for our meteorology unit! Multiple students used this instrument and successfully practiced recording data, analyzing data, reading tables, connected patterns with weather conditions. Unfortunately, some psychrometers we ordered were missing the data table necessary for conversion.
This is a great little tool. On a high school level the celcius degree readings worked out perfect!
I would have liked it better if it came in degrees Farenheit. But, it included an instruction sheet with the formula for coming up with the humidity percentage. The students loved them!