This model features a brighter field of view than its predecessor the DR-A1, making it easier to measure inhomogeneous and/or dark samples. By very simple operation that needs only to set the boundary line of refraction at the cross hairs, this refractometer directly indicates a measured value in refractive index or Brix (%). This model enables to carry out measurement easily without reading of analog graduation. It can be connected to a printer and computer. Please note that dispersive value cannot be measured by this refractometer.