Conductivity measurement using electrochemical cells is a simple and cost-effective method frequently used to determine the concentration of dissolved substances in samples ranging from distilled water to concentrated acids and galvanic baths. While the parameters used for measuring conductivity are straightforward, they vary strongly depending on the sample being measured and the temperature at which the measurement is being made. Potential sources of error in conductivity measurements can be manifold, but with a better understanding of the theory behind conductivity, and a few useful tips on how best to measure conductivity, potential errors in measurement can be reduced and the accuracy of conductivity measurements can be increased.