TW-1001 Lensmeter with/out Compensator（Internal Reading）
1. Ranges of measurement: 0 to±25D Minimum: 0.125D graduation up to ±5D 0.25D graduations over ±5D to ±25D
2. Cylinder Axis Range: 0 ~180°step 1°
3. Prismatic Power Range:Prism diopter of Pattern A: at 1△ interval in the range of 0~5△Prism diopter of Pattern B: at 1△ interval in the range of 0~20△
4. Prism base angle :at 50 intervals in the range of 0 ~180 degree
5. Eyepiece Adjustment: ±5D
6. Measurand Lens Diameter: φ16 ~φ80mm
7. Dimensions: 275mm(h)×130mm(w)×455mm(d)
8. Weight: 5.6kg
9. Lamp: 220V15W 110V15W
