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EC 2,7


When using a meter to measure either the ppm of total dissolved solids or conductivity of a liquid, it is necessary to …

pH 7


7.0 pH Calibrating Solution is to be used with the Digital pH Pen Suitable for all makes and models of pH pens and …

TDS-Meter 3


TDS-3 – TDS Meters. With its rugged design and build, the TDS-3 is an ideal meter (tool) that can be used for any application; Ranging from water purification to hydroponics to industrial wastewater treatment.