MeasurementandControlTechnology:PhotometerP42i-calThenewP42i-calphotometerwasdevelopedasmeasuringsystemtocomplimenttheDEPOLOX Pool.Itcanmeasureuptoelevenparameters,includingchlorine,chlorinedioxide,ozone,pH-valueandacidcapacity.Fittedwithaninfra-redinterface,liketheDEPOLOX Pool,thevaluemeasuredinthephotometerisautomaticallyandsimultaneouslytransmittedbytheintegralinfra-redsystem.Thetime-stampfunctionensuresthatcalibrationofthemeasuredvaluetakesplacesimultaneouslywithzerocalibration.