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EC formula troubleshooting

FuZzY619
FuZzY619started grow question 4y ago
To get an EC value, I must multiply the ppm reading by 2 and divide by 1000. But my TDS tester gives me both microSiemens and ppm reading.. which measurement do I use to get the correct EC value, microSiemens or ppm?thank you in advance.
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Week 4
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Chow_13
Chow_13answered grow question 4y ago
Like mouse said use the uS/cm value as it is the same as ec just a smaller measurement. Its like millimetre to centimetre or feet and inches . PPM can vary depending the device.
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