Product review (5 stars): Solid and reliable Z-Wave thermometers.
These thermometers are great. I have been running two of them for a couple years now with zero issues.  Battery life is astounding, I can't even remember the last time I had to change them.  The Z-Wave wireless range is impressive as well; one is quite far from any other z-wave devices and it still communicates fine.  It was a bit tricky to get them set up to show humidity in my Vera system, but that was years ago, so the Vera firmware may have been updated since to make it easier.