Product review (2 stars): Seriously, what were they thinking
Who thought it was a good idea to put black numbers on a dark background? It seems to work fine, and during daylight it's easy enough to see. However at night unless it's right under a strong light it may as well be blank . I like the humidity/temp combo, and it seems well made for the price.
That said,, though, I wouldn't buy it until they either illuminate the screen, preferably, or put a white background. That screen is just a bad idea.