CALL; A.WIHARTA 081294124885 085778084789 087784022201 Info Produk 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 ( % ) , selective ) in digits together with temperature on the display. This refractometer enables anybody to carry out measurement easily without reading of analog graduation. The DR-A1 Digital Abbe Refractometer can now be connected to a printer and computer. Individual measurements and their average values as well as temperature readings can be printed to a DP-22 ( C) Digital Printer ( sold separately) or transmitted to a computer. * Dispersive value cannot be measured by this refractometer.