Vetex Distance(vd) 0.0,12.0,13.75mm Sphere Power(SPH) -20.00~+20.00D(in case of VD=12mm) Cylinder Power(CYL) 0.00~±10.00D(0.12/0.25D Unit) Axis(AX) 1~1800 (10 Unit) Cylinder Form -,+,MIX Pupil Distance(PD) 10~80mm Minimum Pipul Diameter ¢2.00mm Radius of Curvature 5.0~10.2mm(Increments:0.01mm) Corneal Power 33.00~67.50D(When corner equivalent refractive index is 1.337;0.05/0.12/0.25D unit) (Increments selectable from 0.12,0.25D) Corneal astingmatism 0.0~-15.00D (Increments selectable from 0.12,0.25D) Axis 1~180°(Increments:1°) Corneal Diameter 2.0~14.0mm(Increments:0.1mm) Memory of Data 10 measure value for each right and left eye Internal printer Uses thermal line printer Monitor 5.7-inch color TFT LCD monitor Operation Temperature:+10 to +35ºC Humidity:30 to 75%RH Atmospheric pressure:800~1060 hpa Storage Temperature:-10 to +55ºC Humidity:30 to 75%RH Atmospheric pressure:700~1060 hpa Transportation Temperature:-20 to +70ºC Atmospheric pressure:500~1060 hpa Power supply AC100~240V,50/60HZ Power consumption Approximately 100VA Size 480(L)*282(W)*445(H)mm Weight Approximately 17kg Product Description Our Advantage : 1: For all your inquires about us or our products , we will reply you in detail within 24 hours. 2: We own professional team have professional attitude to recommend products and services. 3:One year free warranty , after it is still providing after-sales service . 4: We offer OEM services , Can print your own logo on the products . 5:We have very experienced engineers , can help you better use our products .