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About product and suppliers:
        Alibaba.com offers 152 soil survey instrument products. About 73% of these are ph meters, 11% are testing equipment, and 3% are moisture meters. 

A wide variety of soil survey instrument options are available to you, such as paid samples, free samples. 

There are 152 soil survey instrument suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Singapore, and United Arab Emirates, which supply 98%, 1%, and 1% of soil survey instrument respectively. 

Soil survey instrument products are most popular in Western Europe, Eastern Europe, and Central America. 

You can ensure product safety by selecting from certified suppliers, including 14 with Other, 3 with ISO9001 certification.