Product review (4 stars): Complete and simple
Good: This was the only digital thermometer with exactly the info I wanted and nothing else: outdoor temperature and humidity plus indoor temperature and humidity. It's amazing how many models leave out one of those four. Also, there were no extraneous bits of info on the display to distract from the basic info: no weather prediction, no clock, no silly icons of rain clouds and stick figures with umbrellas. The digits are large and easy-to-read. There is some extra info, but it's very subtle (not distracting). There are small arrows that indicate whether the display values are rising or falling.

Bad: consistency. When the outdoor sending unit is set up right next to the indoor receiving unit, you can see that they disagree with each other by one to three points.