Milwaukee C66 Waterproof Conductivity EC/Temp Tester with Replaceable Electrode, 0.00 to 10.00 microSiemens/cm, 0.01 microSiemens/cm Resolution, +/-0.2 percent Accuracy

The Milwaukee Sharp EC Waterproof tester is a conductivity meter suitable for heavy-duty applications such as waste-water treatment and agriculture, and has automatic temperature compensation, manual one-point calibration, and automatic shutoff for low battery to prevent erroneous readings. It has an IP67 waterproof casing. Conductivity meters are commonly used in the water-quality testing, waste-water treatment, hydroponics, agriculture, and aquaculture industries, in cosmetics manufacturing, and in laboratory research.

Conductivity meters, also known as electrical conductivity (EC) meters, measure the ability of a solution or material to conduct an electrical current. This measurement helps determine if the solution is, for example, contaminated or contains too much saline. In general, pure solutions, such as distilled water, have low conductivity. More saline- or nutrient-rich solutions, such as seawater or fertilizers, have high conductivity. Conductivity measurements are often used with total dissolved solids (TDS) measurements, which are typically expressed in ppm (parts per million). TDS consist of dissolved minerals and salts. To determine the amount of TDS, conductivity is measured, and the result is converted to a TDS measurement. Different meters provide results for conductivity, TDS, or both, and the application determines meter selection. Conductivity meters are used in research laboratories and a variety of industries, such as water-quality testing, waste-water treatment, hydroponics, agriculture, aquaculture, and cosmetics manufacturing.