WTW Multi 3630 IDS Multi-Parameter Portable MeterPortable Multiparameter Measurement of pH, Dissolved Oxygen, Conductivity, and Turbity Intelligent, digital Sensors measure and combine measurement results with sensor data no matter if operated by cable or wireless module. And perfectly fitting to them, we developed the new MultiLine IDS series for pH, ORP, dissolved oxygen, conductivity and turbidity. PRODUCT FEATURES Measure three parameters simultaneously pH, ORP, dissolved oxygen, conductivity