Characteristicsl Measurementofrefractiveindex,averageorpartialdispersionoftransparentorsemi-translucentliquidandsolidsubstances.l Aninstrumentessentialformanufacturersofopticalinstrumentandscientificresearchinstitutesandschoolsofhigherlearning.l Visualaim,quickmeasurement,highprecisionandeasytooperate. Specificationsl Measurementrange: RefractiveindexnDforsolidsubstances:1.30-1.95 RefractiveindexnDforliquidsubstances:1.30-1.70l Accuracy: RefractiveindexnD: 5 10-5l Wavelengths706.5,656.3,589.3,587.6,546.1,486.1,435.8,404.7nml Weight(net):11kg