KL-139C TDS Tester - KL-139C

It is a budget priced pocket size total dissolved solids (TDS),
tester .
Automatic temperature compensation ensures correct
readings.
The digital display allows the operator to see the
readings from every angle.
Calibration is very simple to perform: immerse the tester
in the calibration solution and adjust the trimmer on the
rear of the meter until the correct value is displayed.
For a number of applications, it is crucial to determine
the quantity of dissolved salts in a body of water. High
concentrations can cause corrosion and deposits in
heating systems and can be detrimental to aquatic
plants and animals.