Desktop Refractometer is associated with a thermostat, allowing the temperature to be measured between 0 to 70 °C. The measurement range is 1.3000 to 1.7000 nD, with an index of refraction and high accuracy of 0.0002 nD. The reflector is made of hard glass, as well as the base is made of steel. It works chromatically directing, ocular knob reading, easy operation, and appropriate application.