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About product and suppliers:
        Alibaba.com offers 874 automatic calibration ph meter products. About 88% of these are ph meters, 3% are testing equipment. 

A wide variety of automatic calibration ph meter options are available to you, such as auto testing machine, universal testing machine. You can also choose from free samples, paid samples. 

There are 872 automatic calibration ph meter suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 98%, 1%, and 1% of automatic calibration ph meter respectively. 

Automatic calibration ph meter products are most popular in Southeast Asia, South Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 202 with ISO9001, 49 with Other, and 37 with ISO13485 certification.