auto refractometer RMK-200 auto refractometer RMK-200 with CE&FDAparameterSpecifications Refractometry Vertex Distance (VD) 0.0,10.0,12.0,13.5, ... 180° (Increm ents: 1°) Cylinder Form -, +, MIX Pupil Distance (PD) 10 ~ 85mm Minimum Pupil Diameter 2.0mm Keratometry Radius of Curvature ... : 10 to 95% RH Power supply AC220V, 50Hz Size 280(W) × 475(D) ×475(H)mm Weight Approximately 26kg Auto refractometer