08 Jan Focus On Measuring Free Chlorine in the presence of Chlorine Dioxide 11 Dec Focus On ORP for the Removal of Residual Chlorine using Sodium Bisulphite (or other reducing chemicals) 13 Nov Focus On Zero Chlorine 24 Jul Focus On PeraSense for Online Peracetic Acid Monitoring 05 Dec Focus On TurbSense® for Online Turbidity Monitoring 01 Aug Focus On US Water Treatment Plant – Online Turbidity Meter Trial 1 2 3 4 5 6