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About product and suppliers:
        Alibaba.com offers 59,778 pir sensor products. About 16% of these are alarm, 11% are sensors, and 1% are other switches. 

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

There are 59,559 pir sensor suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and India, which supply 98%, 1%, and 1% of pir sensor respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 15,414 with ISO9001, 3,325 with Other, and 2,621 with ISO14001 certification.