Parameter characteristics
Large range: the detection range ranges from -13 d to +13D.
High accuracy: 0.01D.
Full function: parameters can be selected curve rate R, ball lens, ball lens astigmatism, Dpt average, ADD and other functions.
Strong versatility: suitable for single light, progressive sheet, coated garage sheet.
Fast speed: real-time display of results, less than 0.1s.