Not enough information to know how to read or use the app. Trying to find an app isn't easy either. There is no unique app name and no clear instructions on how to use the app. The instructions that came with the pH strips weren't entirely clear, so I looked through them as if they were in a foreign language. There is no information that I am testing everything and which part of the strip is testing what. It doesn't say a problem, but for me it was and is a terrible problem. That's why I'm sending it back.
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