The EX-100 is a side stream analyzer using the fluorescence measurement technique. The EX-1000 has additional benefit of spectral analysis. The introduction of this revolutionary oil in water analyzers began with the EX-100. It was the first on-going maintenance free analyzer to provide continuous uninterrupted accurate measurements of oil concentrations. For the first time, reliable real time data enabled operators to take accurate discharge measurements and thus take the next step to improve efficiency of separation processes and saving money.