Product review (2 stars): I am very displeased with this unit. From the ...
I am very displeased with this unit.  From the very beginning I new the hygrometer part of this unit was wrong.  After checking by way of a calibration test I found that it is 10 per percentage points off.  So now I will just have to remember to add 10 to the percentage reading.  I was looking for a accurate hygrometer but this is not the one.