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About product and suppliers:
        Alibaba.com offers 8,389 survey instrument products. About 28% of these are other measuring & analysing instruments, 16% are other optics instruments, and 16% are level measuring instruments. 

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

There are 8,306 survey instrument suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and South Korea, which supply 97%, 1%, and 1% of survey instrument respectively. 

Survey instrument products are most popular in Southeast Asia, Africa, and South America. 

You can ensure product safety by selecting from certified suppliers, including 343 with ISO9001, 265 with Other, and 34 with ISO14001 certification.