Title: pH scale too CHOPPY
Product review: The pH scale on these test strips is too choppy -- the scale only has colors for 6.4, 6.8, 7.2, 7.6 and 8.4. The ideal for a spa is 7.5 with an optimal range of 7.2 to 7.8. Basically this test strip gives you just 2 colors to check water values. Needs to be improved for a smaller scale in 0.1 increments between 7 and 8. Otherwise, works as advertised and confirms another test kit we use as our go to measurement tool (it uses titration of a solution to more accurately determine pH and has an interval of 0.2 between 6 and a bit under 9.)
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