They can both be found in the Queenstown Lakes District of New Zealand!“All of the chlorine/pH analyzers are working well (Cl2 residuals are a lot more stable than with the previous chlorine analyzers). The first unit that went in was a 2x pH input CRIUS® which went in early July this year. Since then we have installed pre- and post-residual CRIUS® (2x units) at all of the water treatment plants in the area (4 water treatment plants, 8x Cl2/pH analyzers).” The CRIUS® HaloSense controllers are a potentiostatic chlorine-amperometric membraned chlorine sensor. This free chlorine sensor has a reduced susceptibility to pH variations and as such provides a very stable online residual chlorine measurement and control instrument. For further details click here.






