Measuring Range:
-Spherical -20~+20D(VD=12) 0.12D/0.25Dsteps
-Cylinder -8~+8D 0.12D/0.25D steps
-Axis 0~180 1 steps
-Pupil Distance 45~85mm, 1mm steps
-Vertex Distance 0mm, 12mm, 13.75mm
-Min. Pupil Size 2.0mm
-Chart Auto fog
-Display 5"CRT Monitor
-Print Thermal Printer
-Power Supply 110~240V, 50/60Hz
-Dimensions 469(L)*308(W)*522(H)mm3
-Weight ~20kg(41 lb).