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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
only the infrared light is needed
Dimensions :13 cm(L)
Dual signal output (TTL level output and Analog output)
Integrated logic controlled white LED light source
KY039 Finger Detection Heartbeat Measuring Sensor Module antenna only the infrared light isIntroduction: Finger Detection Heartbeat Measuring Sensor Module KY 039 uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse. This component is ideally suited to adding heartbeat sensing to your project. Pulse monitor works as follows: The LED is the light side of the finger, and phototransistor on the other side of the finger, photo transistor used to obtain the flux emitted, when
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