A TDS Meter indicates the Total Dissolved Solids (TDS) of a solution, i.e. the concentration of dissolved solids in it. Since dissolved ionized solids such as salts and minerals increase the conductivity of a solution, a TDS meter measures the conductivity of the solution and estimates the TDS from that.
Dissolved organic solids such as sugar and microscopic solid particles such as colloids, do not significantly affect the conductivity of a solution so a TDS meter does not include them in its reading.
TDS Economical Pocket Tester.
...TDS Economical Pocket Tester.
...Pocket-size Conductivity / TDS / Temperature Meter with replaceable electrode
...Pocket-size Conductivity / TDS / Temperature Meter with replaceable electrode.
...TDS Monitor
...Conductivity / TDS / NaCl / Temperature Laboratory Bench Meter
...pH / ORP / Conductivity / TDS / NaCl / Temperature Laboratory Bench Meter
...Conductivity / TDS / NaCl / Temperature Professional Portable Meter
...Standard Portable TDS Meter (range: from 0 to 1990 mg/L)
...Standard Portable TDS Meter (range: from 0.0 to 10.0 g/l)
...Standard Portable pH / Conductivity / TDS Combination Meter
...Standard Portable pH / Conductivity / TDS Combination Meter
...pH/Conductivity/TDS/Temperature Testers with replaceable electrode
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