... , it is now the most popular in China! Auto Refractometer AR-2000 Features:· New color LCD screen· New display and operation ... differences between AR-1000A and AR-2000 are: 1) AR-2000 has new modern design; 2) AR-1000A is automatic measurement, AR-2000 is manual ... to Europe, America, Southeast Asia and Africa, etc. Auto Refractometer AR-2000 optical equipment