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About product and suppliers:
        Alibaba.com offers 5,303 door sensor lock products. About 44% of these are locks, 1% are elevator parts. 

A wide variety of door sensor lock options are available to you, such as free samples, paid samples. 

There are 5,303 door sensor lock suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of door sensor lock respectively. 

Door sensor lock products are most popular in Mid East, Domestic Market, and North America. 

You can ensure product safety by selecting from certified suppliers, including 1,071 with ISO9001, 463 with Other, and 84 with ISO14001 certification.