Product review (5 stars): Nice, Solid Unit
Very nice.  First thing I noticed was the weight.  Unless they added rocks for fun they used some serious material in this thing for protection from gravity (Dropping it).  I'm a geek so one of my tests is to see if I can perform all the tasks without reading the manual.  No one will have to read this manual because the unit is very easy to understand.  The probe is a hair too large to fit through my registers but I did not receive a different reading poking the unit into the duct to right at the surface.  The humidity registered 1 percent higher than another unit I've calibrated (probably rounding) but temperature and dew point were dead on.  You can quickly flip from Fahrenheit and Centigrade.  You can show relative difference between two readings and min/max.  Data Hold locks the readings which is very handy as one is moving to the next measurement point.  The included battery seems to be a bit thicker than is typical.  Hopefully it means it will last a long time.  The carrying case can slip onto a belt.  Overall a very nice unit that I have confidence in