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About product and suppliers:
        Alibaba.com offers 667 doppler module products. About 33% of these are sensors, 25% are color doppler ultrasound equipments, and 19% are ophthalmic optical equipments. 

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

There are 667 doppler module suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of doppler module respectively. 

Doppler module products are most popular in Western Europe, Eastern Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 51 with Other, 22 with ISO9001, and 10 with ISO13485 certification.