I tried several brands of these for testing my dog's urine pH, and this brand was the most accurate of all and matched the vet's test results.In case this helps anyone who is unsure of how to read the colors to get a pH result, you will not always be able to see only one set of corresponding colors on your sample/test strip that will lead to just one particular pH number on the color chart. As a matter of fact, I think this rarely happens. Instead, see what color the top square ends up being closest to, and then see what color the bottom square ends up being closest to. After you have those two different numbers, slide over on the color chart to whatever number is exactly halfway between those two, and that is your final pH answer. You will often need to "take an average" of the two resulting colors by meeting halfway between them in order to arrive at your pH test result. That is how the pH test strip companies advise to do it whenever both color squares don't line up into the exact same pH number.Now, as for determining which color each square ends up being closest to! This is another aspect of the test that many people are confused how to interpret, since very often you will see a color that does not seem to match ANY pH color choice on the chart. What you have to do is "see into the color" to try to tell how much orange is in the yellow shades, or how much blue is in the green shades, or how much green is in the middle shades. Think of these colors in terms of reddish-orange or yellowish-orange, and then at the other end think in terms of yellowish-green, spring green, forest green, blue-green.Look at only the top test strip square color while holding it right over the color chart, and slide it along the color chart choices while seeing if your color is more orangish or more greenish. See which color chart choice your test strip square looks closest to while asking yourself if it looks EXACTLY like the orangish or greenish hue on the color chart, or if it looks like it has a little more greenish to it, keep sliding it on down toward the greener end of the chart until the chart starts looking darker green or more blue than your sample, then slide the sample back the opposite way until the chart starts looking darker orange than your sample, and keep doing that until you've ruled out more and more colors on either end and finally end up in the middle where your sample matches the closest of all. After determining what that pH number is for the top square on your test strip, then do the same thing with the bottom square on your test strip. After you determine the closest-looking pH number for the bottom square, then take those two different pH numbers and meet exactly halfway in between them (to take the average of the two of them) to arrive at your final pH result number. Sometimes you'll come up with the same pH number for both the top and bottom squares of your test strip, but not always.

Exactly what I expected.

i cant figure out the way to read this, i had to as pharmacist to show me.

Great product at a great price

Easy to use.

Easy to use, the readings are not the same compared urine and saliva but it definitely works, tested different foods and it was noticeable

My test strip on my saliva doesn't match any of the colors on the chart, so I am unsure of what my saliva PH is. These should be more accurate. It has left me wondering

Tested these against other strips they were accurate. Easy to read and gave good instructions.

Haven’t used it yet