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About product and suppliers:
        Alibaba.com offers 192 speed warning device products. About 32% of these are car alarms, 10% are alarm, and 8% are other auto electronics. 

A wide variety of speed warning device options are available to you, such as two way, one way. You can also choose from dc 12v, dc 24v. As well as from outdoor, industrial. And whether speed warning device is paid samples, or free samples. 

There are 192 speed warning device suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Spain, which supply 98%, 1%, and 1% of speed warning device respectively. 

Speed warning device products are most popular in Mid East, Africa, and Central America. 

You can ensure product safety by selecting from certified suppliers, including 63 with ISO9001, 10 with Other, and 1 with BSCI certification.