Measuring range:
Spherical -20~+20 D, 0.125 D
Cylinder -8~+8 D, 0.125 D
Axis 0~180°,1°
PD 45~85mm
Vertex distance 0mm,12mm,13.75mm
Min. pupil size 2.2mm
Display 5" CRT Moniter
Chart Auto fog
Power 100~120v/200~240v,50/60Hz
Dimension 484*282*440mm
Weight 20kg