· Internal reading 

· ±25D measurement

· Wide field of vision observation

· Compensation Prism Available

· AC/DC 

 Ranges of Measurement:0 to ±25D

 Minimun: Ourter Reading0.125D

                Inner Reading0.125D graduation up 0 to ±5D

                 And 0.25D graduations over±5D to ±25D

 Cylinder Axis Range:0~180°

 Primatic Power Range:0~5 prism diopters 1 graduations

 with prism compensation device 0~20

 Prism diopters,1graduations
 

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FAQ:

Q: How to purchase your products ?
A: You can contact with us and purchase from our company directly. Normal procedure is: offer, sign contract, payment and shipment.
 
Q: What's the warranty for the products ?
A: The free warranty is one year from the date of commissioning qualified. However, we will still provide good after-sales service after warranty period.
 

Q: Can we visit your factory ?
A: Of course, welcome to visit our factory if you come to China.
 
Q: How long is the validity of quotation ?
A: Generally, our price is valid within one month from the date of quotation. The 
price will be adjusted appropriately as the price fluctuation of raw material in 
the market.
 
Q: What's the production date after we confirm the order ?
A: This depends on the quantity. Normally, for the mass production, we need about 
7-10 days to finish the production.