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About product and suppliers:
        Alibaba.com offers 958 gem detector products. About 83% of these are industrial metal detectors, 4% are jewelry tools & equipment, and 4% are led flashlights. 

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

There are 967 gem detector suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Japan, and Thailand, which supply 97%, 1%, and 1% of gem detector respectively. 

Gem detector products are most popular in Western Europe, North America, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 196 with ISO9001, 119 with Other, and 41 with OHSAS18001 certification.