Only the first three product links are actually linking to the product pages. Wasn't able to find the last three on the US website.
The product pages do not show the test cards well enough to get an idea of the color gradient, so never having used one of the Elos kits, it is hard to tell how useable they might be.
I do however like the fact that the reagents are independantly tested and that the goal is to use reagents that pose the lowest health risk to the user.