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About product and suppliers:
        Alibaba.com offers 4,593 auto refractometer products. About 46% of these are other optics instruments, 40% are refractometers, and 22% are ophthalmic optical equipments. 

A wide variety of auto refractometer options are available to you, such as free samples, paid samples. 

There are 4,659 auto refractometer suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Japan, which supply 98%, 1%, and 1% of auto refractometer respectively. 

Auto refractometer products are most popular in Western Europe, Mid East, and North America. 

You can ensure product safety by selecting from certified suppliers, including 661 with ISO13485, 653 with ISO9001, and 498 with Other certification.