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5Pcs Infrared IR LED Pulse Detect Sensor Module Heart Rate Detect Measuring Module Measure Finger TL Module KY-039
- Operating Voltage: 5V Number of sensor pins: 3Pins Color: Black Package Contents: 5Pcs Finger Pulse Detect Sensor Module
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Operating Voltage: 5V; Using ultra-bright infrared (IR) LED and a photosensitive transistor to detect the pulse of the finger, a red LED will flash with the pulse;
Working principle: As LED and photosensitive transistor are located on two sides of the finger, the photosensitive transistor is used to obtain light flux. When blood pressure pulsation passes through the finger, the resistance of the photosensitive transistor will change slightly;
Number of sensor pins: 3Pins;
Color: Black;
Package Contents: 5Pcs Finger Pulse Detect Sensor Module
Working principle: As LED and photosensitive transistor are located on two sides of the finger, the photosensitive transistor is used to obtain light flux. When blood pressure pulsation passes through the finger, the resistance of the photosensitive transistor will change slightly;
Number of sensor pins: 3Pins;
Color: Black;
Package Contents: 5Pcs Finger Pulse Detect Sensor Module
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- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Kepler Forge Return Policy
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