Digital Display Lens Meter
1.Eyepiece focusing range: ¡À5D
2.The top point dioptre measuring range: -20D~+20D
3.The minimum measuring square value: 0.01D
4.The shuttle lens measuring range: 10
5.The shuttle lens square value: 1
6.The cylinder lens axial range: 0-180¡ã
7.The cylinder lens axial square value: 1¡ã
8.The maximum diameter of the measured lenses: 100mm
9.The lighting(AC): 220v/110v-6v