A dynamic mode of operating a three electrode setup for ORP and pH documentation of a media includes: establishing a first constant potential or a first constant current between a working electrode and a counter electrode and documenting a first documented potential between the working electrode and a reference electrode as a measure of ORP of a media; establishing a second constant potential or a second constant current between the working electrode and the counter electrode and documenting a second documented potential between the working electrode and the reference electrode; establishing a third constant potential or a third constant current between the working electrode and the counter electrode and documenting a third documented potential between the working electrode and the reference electrode; and determining a difference between the second and third documented potentials between the working and reference electrodes as a measure of a pH of the media.