5/10PCS KY-039 5V Heartbeat Sensor Detector Module By Finger For Arduino Finger Measuring Heartbeat

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5/10PCS KY-039 5V Heartbeat Sensor Detector Module By Finger For Arduino Finger Measuring Heartbeat

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5/10PCS KY-039 5V Heartbeat Sensor Detector Module By Finger For Arduino Finger Measuring Heartbeat

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5/10PCS KY-039 5V Heartbeat Sensor Detector Module By Finger For Arduino Finger Measuring Heartbeat

5/10PCS KY-039 5V Heartbeat Sensor Detector Module By Finger For Arduino Finger Measuring Heartbeat