Size:288(W)*500(D)*480(H)mm Weight:14kg Product name:Portable Refractometer Vertex distance:0mm, 12mm, 13.75mm Spherical:-20~20D (VD=12) 0.12/0.25D Step Cylinder:-8~+8D, 0.12D/0.25D Step Pupil distance:15-88mm, 1mm Step Min. Pupil size:2.0mm Radius of curvature:5.0-10.0mm Warranty:2 Years Display:5.7 Inch Color LCD Weight:15.5KG Show More