EC is the standard, i think you can find some info on ppm to EC on the hanna webpage, PPM is different for Hanna, Oakton, Milwaukee, etc, all based on accuracy!
familyguy Reviewed by familyguy on . Electro conductivity world wide Hello, i bought an electro conductivity meter to apreciate the amount of nutes in the water. The value goes from 0 to 2, 2 being a very rich nute solution. Do you know this kind of unity. What the link between ppm and this kind of european EC meter. Like the link between celsius and fareneight, any conversion rule to be able to understand the EC values in this forum ? Thanks Rating: 5