KY-039 Finger Detecting Heartbeat Module

2 sold in last 8 hours
Ednex Shop
Estimated Delivery in 7 To 15 days
Dhs.4.80 AED
  • KY-039 Finger Detection Heartbeat Measuring Sensor Module for precise pulse detection

  • Utilizes bright infrared (IR) LED and a phototransistor for accurate measurement

  • Red LED flashes with each detected pulse for visual indication

  • Designed to detect blood pressure pulse through the finger

  • Phototransistor detects the flux emitted by the finger during the pulse

  • Resistance of the phototransistor slightly changes with the blood pressure pulse

  • Includes a high resistance resistor (R1) to enhance the sensitivity of the phototransistor

  • Experimentally adjustable resistance for optimal results

  • Shield design prevents stray light from interfering with phototransistor readings

  • Particularly suitable for use in home environments with fluctuating lighting conditions

  • Ideal for applications in healthcare, fitness monitoring, and biometric systems
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Our policy lasts 7 days. If 7 days have gone by since your order has been delivered, unfortunately we can’t offer you a refund or exchange.

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To return your product, you should mail your product to:

EdNex Educational Aids Trading LLC.

205, Al Reyami Building, Karama, Near Karama PO,

PO Box 124467, Dubai,

United Arab Emirates.


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Exchanges (if applicable)

We only replace items if they are defective or damaged.  If you need to exchange it for the same item, send us an email at and after confirmation from our customer support team, please send your item to:

EdNex Educational Aids Trading LLC.

205, Al Reyami Building, Karama, Near Karama PO,

PO Box 124467, Dubai,

United Arab Emirates.

The KY-039 Finger Detecting Heartbeat Module is a precise pulse detection sensor module designed to measure heartbeats accurately. It utilizes a bright infrared (IR) LED and a phototransistor to achieve precise measurements. When placed on a finger, the module detects the blood pressure pulse by utilizing the flux emitted by the finger during each heartbeat. The phototransistor in the module senses the changes in resistance caused by the blood pressure pulse, allowing for accurate detection. To provide visual indication of each detected pulse, the module includes a red LED that flashes with each heartbeat. This allows for real-time feedback and monitoring. The KY-039 module features a high resistance resistor (R1) that enhances the sensitivity of the phototransistor. This ensures reliable and consistent pulse detection. Additionally, the module's shield design helps prevent stray light from interfering with the phototransistor readings, enhancing accuracy. The resistance of the module is experimentally adjustable, allowing for fine-tuning and optimization of the sensor's performance for different scenarios. The KY-039 Finger Detecting Heartbeat Module is particularly suitable for use in home environments where lighting conditions may vary. It can effectively operate in fluctuating lighting conditions, ensuring reliable pulse detection. This module finds applications in various fields, including healthcare, fitness monitoring, and biometric systems. It provides a convenient and non-invasive method for measuring heartbeats accurately, making it an ideal choice for projects and applications requiring precise pulse detection.
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KY-039 Finger Detecting Heartbeat Module
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