anyone have this same device? i got it from http://www.sunstoneherbals.com/hanna_combo_ph_ec_tds_temp_waterproof_tester_hi98129.htm
they have really good deal on it comparing anywhere else i found. i am really noob to all this stuff. should i use the [FONT=Arial, Arial, Helvetica]µS (i think thats EC?) reading or ppm (TDS?)reading or both? i read somewhere that ec is more accurate or something? is this true can someone explain a little about this device so i can understand a better way of using it efficently. please leave comments. thanks in advance
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they have really good deal on it comparing anywhere else i found. i am really noob to all this stuff. should i use the [FONT=Arial, Arial, Helvetica]µS (i think thats EC?) reading or ppm (TDS?)reading or both? i read somewhere that ec is more accurate or something? is this true can someone explain a little about this device so i can understand a better way of using it efficently. please leave comments. thanks in advance
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