Refractometer, Abbe

For quick examination of refractive indices & mean dispersion of liquids, solids and powders.Comprising Abbe double prisms, with thermostat, compensator, telescope mirror and radial arm with vernier. Range nD 1.3000 to nD 1.7000 in steps of 0.001, sugar percentage 0 to 95% in steps of 1 division.