Specifications Sphere measuring range-25??25D unit0.01/0.12/0.25D Cylinder measuring range-9.99??9.99D unit0.01/0.12/0.25D Axis measuring range 0°??80° unit 1° Add measuring range0??9.99D unit0.01/0.12/0.25D Prism measuring range0??.99??unit0.01/0.12/0.25??PD measuring range40??5mm unit0.5mm Diameter ???20mm Display LCD Monitor (5.7inches)??.7″??Printer thermal printer Power supply AC100W 50/60HZ 40VA Dimensions 220(W)*320(D)*430(H)mm Weight ??0kg(44lb)