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About product and suppliers:
        Alibaba.com offers 2,370 sensor door bell products. About 22% of these are doorbells, 15% are video door phone, and 11% are alarm. 

A wide variety of sensor door bell options are available to you, such as plug, battery. You can also choose from wireless, wired. As well as from free samples, paid samples. 

There are 2,368 sensor door bell suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 99%, 1%, and 1% of sensor door bell respectively. 

Sensor door bell products are most popular in North America, Western Europe, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 478 with ISO9001, 159 with Other, and 17 with ISO14001 certification.