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About product and suppliers:
        Alibaba.com offers 27 door guarder products. About 51% of these are industrial metal detectors, 14% are alarm, and 14% are video door phone. 

A wide variety of door guarder options are available to you, such as personal, auto, and door. You can also choose from paid samples. 

There are 27 door guarder suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of door guarder respectively. 

Door guarder products are most popular in Mid East, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 4 with Other, 2 with ISO9001 certification.