In August 2012, the DR-Digital range of hand held refractometers was superseded by the new UK made OPTi series of hand held refractometers.
a:2:{i:0;a:2:{s:4:"name";s:14:"Configuration:";s:3:"val";s:9:"hand-held";}i:1;a:2:{s:4:"name";s:8:"Display:";s:3:"val";s:7:"digital";}}