Product review (5 stars): Seems like a good value for the price I paid
Just got it.  I bought it for the wet-bulb temperature measurement for HVAC use.  This instrument measures temperature and humidity and then computes the wet-bulb temperature using a complicated (built-in) algorithm.  I didn't want to have to carry around a PC with a spreadsheet calculation of wet-bulb temp.  I haven't compared the measurements of this unit with another standard, but I have no reason to believe that it isn't accurate.  Seems like a good value for the price I paid.  Delivery was the promised 2 days.