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About product and suppliers:
        Alibaba.com offers 5,437 485 tcp products. About 20% of these are time recording, 17% are access control system. 

A wide variety of 485 tcp options are available to you, such as fingerprint, face. You can also choose from free samples, paid samples. 

There are 5,437 485 tcp suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 485 tcp respectively. 

85 tcp products are most popular in Domestic Market, Mid East, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 1,732 with ISO9001, 552 with Other, and 177 with ISO14001 certification.