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I use house and gardens nutrients and was told to use the 700 scale setting on my meter (bluelab). I have a separate ec meter as well that I assume is set at 500... because when I set my bluelab to 500 I get the same readings as the other cheapy ppm meter, but ppm readings will change when I set it to 700. I am just curious though to why h&g's use 700 setting? Isn't ppm just ppm.. why would you have to use a different setting? Isn't it just reading how many parts per million in the...
ppm 500 700 setting...
ppm 500 700 setting...
April 22, 2020 at 09:27AM
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