we have 3 units ordered to measure the humidity in our floors can. About the shipping speed has been written a lot but it is remarkable how quickly the package was delivered to the outermost edge of the republic. Well, auspacken-> zusammenstecken-> Battery purity> finished. We have the three devices placed next to our weather station if necessary to make a balance. The differences lay in the temperature and humidity for us in the negligible range 0.1 ° + - 2% and humidity. The climate appears only in full color gradually does not bother us, it's the display even with numbers because, if you like it exactly. For this price, the quality and the performance offered is excellent.