ahh Loc-nar you are a champion! yes it does have x10.

Today's reading was 135x10 = 1350 . Is this OK for seedlings?

how does 1350 EC3 translate to PPM if you could answer you will be a God in my eyes :P

Thanks again
trippy321 Reviewed by trippy321 on . EC-3 reading confusion! Hi, I just took a reading on one of these EC-3: Handheld Conductivity Tester with Case - HM Digital (EC-3 meter) and the reading was 146 - and when I did a reading on my tap water it was 701 ... just wondering if I'm doing this wrong, as it is really confusing for me. The 146 reading is in my aero setup and they are 2 week old seedlings (which look like they arn't doing to well - the 1st true leaves curling under - any help would be really great. Thank you for your help! :) Rating: 5