5PCS Green Board HC-SR501 HCSR501 SR501 Human Infrared Sensor Module Pyroelectric Infrared Sensor Imports Probe for arduino

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5PCS Green board HC-SR501 HCSR501 SR501 human infrared sensor module Pyroelectric infrared sensor imports probe for arduino Developed Countries Estimated Delivery Time: 7-17 days(trackable),Other countries Estimated delivery time : 8-30 days.----- We provide Expedited Shipping service : 3-8 days.(excluding handling time).If the order amount above US $200, we will use Expedited Shipping service for free. If it is not delivered within the specified time, or if it is not satisfactory. You only need to send a refund request and we will refund you in full. We make every effort to provide customers with satisfactory service.any question,please feel free to contact me.

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