Found this in another thread.... is it saying that a 442 reading of 1400 or an NaCl reading of 750 means the PPM is at 1500? If so, please reply quickly or the herb committee will charge me with murder!!!

Electrical Conductivity (EC) Parts Per Million (PPM)
miliSiemens (mS) microSiemens (mS) NaCl Conversion 442 Conversion
1.0 1000 = 500 ppm 700 ppm
1.5 1500 = 750 ppm 1050 ppm
2.0 2000 = 1000 ppm 1400 ppm
2.5 2500 = 1250 ppm 1750 ppm
3.0 3000 = 1500 ppm 2100 ppm
NoDrugs4Me Reviewed by NoDrugs4Me on . sunleaves TDS/EC meter Hello all! I've been getting decent results as-of-late and would like to know EXACTLY what ppm my nutrient level is at. I bought the Sunleaves TDS Expert Plus (STEP500) a while back and still am unable to read it properly. I looked in the manual, http://www.sunleaves.com/senddoc.asp?id={E9A56762-1A4C-41E7-AF5A-90BB81A02AFA} , but I am still confused. I would like my plants to be around 900 PPM during veg (now). Can anyone assist? Thanks! :jointsmile: Rating: 5