Product review (2 stars): Inaccurate Humidity Sensor
I had high hopes for this device to track humidity in my house. It did sync up quickly and I was able to "see" it on my Vera 3 (FKA MicasaVerde).
My intention was to use this to trigger a change in air-conditioning temp when humidity was too high. I don't know whether this was an issue with the Vera or this unit, but I was unable to use this as a trigger. I am not a newbie at home automation and have a reasonably sophisticated home system...and I tried everything I knew how to do without success. The Vera blogs were unable to help me. Do your own homework to make sure it works for you.
The biggest issue, though, was the inaccuracy of the humidity sensor. It consistently read 10% higher than other devices which were right next to it. And what I mean is that it read 60% for example, when my other hygrometers..3 of them...read around 50%.
Given Amazon's GREAT return policy, I was able to return this for full refund, including shipping.
Perhaps I just got a bad unit...but you may also want to check the other reviews some of which report similar issues.