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About product and suppliers:
        Alibaba.com offers 624 pir sensor fresnel lens products. About 55% of these are lenses, 13% are alarm, and 7% are sensors. 

A wide variety of pir sensor fresnel lens options are available to you, such as infrared, optical, and achromatic. You can also choose from plastic, glass. As well as from aspheric, plano, and spherical. And whether pir sensor fresnel lens is plano-convex, double concave, or plano-concave. 

There are 623 pir sensor fresnel lens suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 97%, 1%, and 1% of pir sensor fresnel lens respectively. 

Pir sensor fresnel lens products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 197 with ISO9001, 106 with ISO14001, and 19 with Other certification.