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About product and suppliers:
        Alibaba.com offers 4,336 portable refractometer products. About 81% of these are refractometers, 1% are testing equipment, and 1% are other measuring & analysing instruments. 

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

There are 4,394 portable refractometer suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 98%, 1%, and 1% of portable refractometer respectively. 

Portable refractometer products are most popular in Southern Europe, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 587 with ISO9001, 236 with ISO13485, and 143 with Other certification.