For $75 or less, you can get an EC [electrical conductivity] meter that's far better than a TDS meter which will show all zeros even though the water is significantly impure. at .99 uS [IF... the TDS meter is reading right in that end of the 2000 PPM scale]

Ode

Hi Ode,

I would like to measure ppm but I am confused already.

You just said a ec measures better than a TDS. A question on grammar, it is the TDS meter "which will show all zeros even though the water is significantly impure"? & the EC which is ".99 uS "? ".99 uS " means on cent less that $1 US?

Is an EC the same as my continuity tester? If it is, I will pull mine out & check the units. Because, believe it or not, I'm an electrician. Thanks Ode


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