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About product and suppliers:
        Alibaba.com offers 116,387 heart rate tester products. About 1% of these are testing equipment, 1% are ph meters, and 1% are instrument parts & accessories. 

A wide variety of heart rate tester options are available to you, such as auto testing machine, torsion tester. You can also choose from free samples, paid samples. 

There are 116,387 heart rate tester suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of heart rate tester respectively. 

Heart rate tester products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 25,158 with ISO9001, 18,834 with Other, and 7,518 with ISO14001 certification.