Product review (5 stars): Try and gauge the % of humidity by using another meter to see what you get.
I like this unit, but I question the accuracy of the humidity.  The odd thing is it is off by I feel about 20% but still seems to give an accurate comfort or dry reading.  For example another unit Ihave will rate the humidity at 50% and this unit will rate it at 30% but both will give a accurate comfort level.  So I just use the % of humidity with a handicap of 20%.