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KY-039 Heartbeat Sensor Module

KY-039 Heartbeat Sensor Module

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Regular price $1.33 USD
Regular price Sale price $1.33 USD
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This KY-039 Finger Detection Heart beat (Heart Rate ) Measuring Sensor Module uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse.

The LED is the light side of the finger, and the phototransistor on the other side of the finger, phototransistor used to obtain the flux emitted, when the blood pressure pulse by the finger when the resistance of the phototransistor will be slightly changed.

Specifications:

  • Working Voltage: DC 3.3-5V
  • Size: 1.9x1.5cm

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