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The Y350 is our semi-automatic spectrophotometer covering 280 nm to 750 nm. A 280 nm LED allows measuring the Total Phenolics Index (TPI) under the official method in a 10 mm path-length quartz cuvette. No reagent is needed for this method. 420, 520 and 620 nm LEDs allow measurement of all the different Color Indexes under the official method, also without using reagents. 340, 405, 505, 560, 635 and 670 nm LEDs are included to measure key parameters in the winemakers' laboratory using BioSystems reagents (sugars, acids, nitrogen, glycerol and much more - 28 parameters and counting).