Your post did help me. I'm a newbie, have never posted but have just sat and read for hours until now. This was one topic I really was in the dark about, and it's good to start out with this tid bit instead of finding it later...
greenracer Reviewed by greenracer on . EC x 700 or EC x 500 I just received my trechion Cf meter that reads the EC and ppm but it has two break downs. One is EC x 700 and the other is EC x 500 Can someone tell me which reading I should be going by. Rating: 5