Re: John Ellis, I know your reading this. Please post in your name and tell everyone the truth

TIA,

I was wondering do you have experience/Knowledge concerning ORP Meters? I am trying to find multiple instruments to test water quality.. and things in water..I already ordered a TDS Meter, a cheaper one because I have no knowledge and didn't want to invest too much money before I knew what I am doing. Would you mind lending some of your expertise?

Sherry:) Tweet