What brand ppm meter do yall use?
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Blue lab for both ph and ppm meters.
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@oldguy Does the 700 mean it only goes to 700ppm?
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https://www.thcfarmer.com/attachments/485d9fb1-a674-49da-af2f-12d40fff4f94-png.784877/
Here’s a chart with the diff scale relationships.
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Thank you for the info
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This is what I use. Have two of the PH meters, they both read the same after calibration. This is something that most people don’t realize, you have to calibrate a PH meter EVERY time you use it or you are very likely to get a bad reading. It doesn’t take but about 15 sec to calibrate one.
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Blue labs 3 n1
Ph
Temp
Ppm
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