Introduction Conductivity probes are used with a conductivity meter to measure the conductance of a solution. There is an array of conductivity cells available with different cell materials, cell constants, body materials, connectors, and ATC elements. Choose a probe with a proper cell constant, temperature compensator, and connector to match the meter being used and the range to be measured. Glass body probes with platinum cells are suitable for almost all applications, even solutions with organic solvents. Epoxy body probes with platinum cells offer not only a wide measuring range capability, but also epoxy body durability. Epoxy body probes with carbon cells are designed for general purpose measurements. Specifications The cell constant tolerance for platinum cells is +/- 10%. The cell constant tolerance of carbon calls is +/- 20%.