SecretAgentMan
Member
Hello RIU, first time poster but long time watcher. I just bought a TDS Meter(link below) and it comes calibrated from factory at 342ppm with a NaCl soluton. I was wondering what solution(s) do I use to calibrate it. My only local hydro shop has only 1500ppm solution but myself and the saleslady weren't too sure if that was what I needed. Any help or insight for a novice on this would be greatly appreciated.
http://www.amazon.com/Digital-TDS-4-Pocket-Size-Meter/dp/B0027NOWMU
http://www.amazon.com/Digital-TDS-4-Pocket-Size-Meter/dp/B0027NOWMU