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Example of low reading (meaning there's not enough salt - too dilute). This sample is at 5 on the scale |
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Example of a reading that's in the box. This sample is at 11.5 on the scale. |
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An example of a high reading. Looks like this one is at 20 on the scale. |
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Another example of a high reading. This one is also around 20 on the scale, but is very hard to read...posibly too much retardant on the lens, you should clean lens and try again to see if it becomes clearer. |
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This is an example of straight concentrate. The sample is very fuzzy. Although there is some definite shading, there is no clear line. The whole scale is still visible. |
