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About product and suppliers:
            224 ph level tester products are offered for sale by suppliers on Alibaba.com, of which ph meters accounts for 60%, testing equipment accounts for 3%, and pool & accessories accounts for 3%. 

A wide variety of ph level tester options are available to you, 

There are 224 suppliers who sells ph level tester on Alibaba.com, mainly located in Asia. The top countries of suppliers are China, Hong Kong S.A.R., from which the percentage of ph level tester supply is 95%, 4% respectively.