Product review (3 stars): Misleading Screen Cover
I ordered this unit to replace an old one with a color screen that quit working.  I need one that has large numbers and high contrast due to my limited vision.  This one seemed just right according to the picture, very easy to read with black on white background.  I was very happy when opened the package and saw the large numbers and bright screen I can easily read.  Then I got the init out of it's plastic bubble and installed batteries and removed the screen cover.  Horror!  The screen was actually very dark with little contrast.  I can barely see the numbers, even up close.  What a misleading screen cover that looks very different from the actual screen.  I still set it up and it is working well, except I can't read the screen unless it is right beside me and has a light shining on the screen.  Thus the reason for only three stars.