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About product and suppliers:
        Alibaba.com offers 1,806 open window sensor products. About 77% of these are alarm, 4% are sensors. 

A wide variety of open window sensor options are available to you, such as door, window, and personal. You can also choose from resistance sensor, inductance sensor, and optical sensor. As well as from digital sensor, analog sensor, and switching transducer. And whether open window sensor is paid samples, or free samples. 

There are 1,806 open window sensor suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of open window sensor respectively. 

Open window sensor products are most popular in Western Europe, North America, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 834 with ISO9001, 77 with ISO14001, and 56 with Other certification.