Product review (4 stars): Humidity meters - so far so good
Bought three of these to primarily monitor % humidity in our storage area and in the plant.  I set the three side by side to compare and they were alway withing 1% of each other as far as % humidity.  I was pleasantly surprised about that for a relatively inexpensive meter like this (about $50 each).  Temperature and dew point readings were also very close to each other as well.  I would buy more of these if/when needed.