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About product and suppliers:
        Alibaba.com offers 60,493 pir sensor products. About 15% of these are alarm, 11% are sensors, and 1% are dimmers. 

A wide variety of pir sensor options are available to you, such as position sensor, magnetic sensor, and temperature sensor. You can also choose from optical sensor, ultrasonic sensor, and capacitance sensor. As well as from analog sensor, switching transducer, and digital sensor. And whether pir sensor is free samples, or paid samples. 

There are 60,274 pir sensor suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 99%, 1%, and 1% of pir sensor respectively. 

Pir sensor products are most popular in Western Europe, North America, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 15,601 with ISO9001, 3,518 with Other, and 1,899 with ISO14001 certification.