Product review (5 stars): A winner! Top quality, price, and performance in a compact, easy to read display.
I just installed the ThermoPro TP63 yesterday in time for the first fall overnight temp drop. It worked perfectly. The outdoor sensor is easy to mount using a one nail picture hanger. It communicates very well with the indoor display. This display is the same size as the Thermopolis indoor unit I also purchased. What I really like about these units is that they seem to be perfectly engineered for their size. I like the size of the read outs, the accuracy, and the one touch backlight.  The other brand units these replaced were much larger and much less accurate, especially the humidity! Over the last several days there was much rain and it was interesting to see indoor vales climb and drop and the effects of air conditioning. Well done, Thermopro! I think these units are a winner! Quality, price, and performance are tops.