In the NANOCOLOR® Advance, MACHEREY-NAGEL combines the most important properties from our portable compact photometers and our high precision spectrophotometers. The Advance has all the advantages of a modern spectrophotometer and combines high-quality results with outstanding user-friendliness. The unique NTU check warns the user in case of interfering turbidity and thus makes it the ideal device for all applications in water and wastewater analysis, especially COD analysis.