Sphere range: -20.00~+20.00D ((VD=12mm,0.12D/0.25Dsteps)
Cylinder range: -10.00D~+10.00D,0.12D/0.25Dsteps
Axis range: 1∽180°，1°steps
Minimum measurable pupil diameter: Ø2.0mm
PD measurement range: 10~85mm
Dimensions: 10~85mm
Weight: 21kg
Power Supply: AC100~240V,50/60Hz/90W