Product review (5 stars): Perfect for basic outbuilding monitoring
Great weather monitor station!  Reasonably priced, basic data tracking, attractive lighting, and accurate measurements.  I bought multiple add-on sensors for detached buildings, but first set them next to the thermometer in the kitchen as a test - all were within 0.5 degrees and 2% humidity of one another 12 hours later.  More than accurate enough for the casual observer.

Once placed in the detached buildings (and one outside), the sensors demonstrated great range and easy auto-detect setup.  Back-lighting is nice, and my wife likes the temp-driven color-changing scheme (not so impressive for colorblind guys like me).