Product review (5 stars): an accurate humidity meter
This meter is backed by a certification for accuracy.  I have purchsed several cheap humidity meters and they all read differently.  As a result, I have run dehumidifiers too much or not enough.  The digital humidity meters on the dehumidifiers are also inaccurate.  This meter gave me the confidence to compare the other cheap meters and then to discard them.

The display is large and bright.  I wanted the remote monitoring feature for refrigerators (closed door temperature measurement).  Response time is very fast so I can move the meters throughout the house and get by with one meter.  This meter is my standard to compare any other meter.  Another cheap meter can still be purchased and then compared to this one.