Review on Lifeguard Aquatic 6-in-1 All Purpose Test Kit with Test Strips by Angie Thomas

I use them to monitor the pH in my brine tank. The pH range is too limited and the color changes too subtle to really tell what your actual pH is. I don't know of a better alternative, but that doesn't make this acceptable in any way. I've tried expensive "pH meters" that are too finicky about drying out and rinsing with distilled water and such nonsense, and yet require constant calibration with known pH reference liquids, even if you use them that way treat it as you should. I've tried all sorts of test strips and they all seem to use the same yellow-orange-purple scale which is completely undetermined near the pH range that a reef (coral) tank should operate in. Also VERY bad match to the color chart they provide for comparison! I'm so pissed. I'm all ears (eyes) to anyone who has advice on how to get a reliable and accurate pH reading without constant calibration. Please use the comments if you have any suggestions. I will try any product that gives hope. As it stands now, all I know from using these things is that my pH is "somewhere" between 7 and higher, which is higher I have no idea. "It's kind of purple". This does not correspond to the printed scale at all. Awww!