Lensmeter by Barrier Free Access (HK) Limited Price US$POA Supplier/s Barrier Free Access (HK) Limited Supplier Code GJD7Prism (IAPB) Country of Origin China Request a quote Product Description Manual Lensmeter (GJD7Prism) Product Features Inner Reading -25D to +25D Includes prism Compensation Device Power Source : AC or AA Batteries To measure spectacle lens power Share: