---
product_id: 99589636
title: "KY039 Sensor Finger Heartbeat Measurement Sensor Module for Arduino Finger Heartbeat Module KY-039 5V"
brand: "reland sung"
price: "€ 12.42"
currency: EUR
in_stock: true
category: "Reland Sung"
url: https://www.desertcart.pt/products/99589636-ky039-sensor-finger-heartbeat-measurement-sensor-module-for-arduino-finger
store_origin: PT
region: Portugal
---

# 5V Power Supply Real-time Data Output Heart Rate Sensor KY039 Sensor Finger Heartbeat Measurement Sensor Module for Arduino Finger Heartbeat Module KY-039 5V

**Brand:** reland sung
**Price:** € 12.42
**Availability:** ✅ In Stock

## Summary

> ❤️ Your Heart, Your Data - Measure It Like a Pro!

## Quick Answers

- **What is this?** KY039 Sensor Finger Heartbeat Measurement Sensor Module for Arduino Finger Heartbeat Module KY-039 5V by reland sung
- **How much does it cost?** € 12.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/99589636-ky039-sensor-finger-heartbeat-measurement-sensor-module-for-arduino-finger)

## Best For

- reland sung enthusiasts

## Why This Product

- Trusted reland sung brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **🔌 Easy Integration:** Seamlessly connects with Arduino for effortless project development.
- • **📈 Accurate Readings:** Get precise heart rate measurements for reliable data analysis.
- • **🛠️ User-Friendly Design:** Perfect for both beginners and pros in the maker community.
- • **💡 Instant Heartbeat Monitoring:** Stay ahead of your health game with real-time heartbeat tracking.
- • **🌐 Join the Health Tech Revolution:** Be part of the growing trend in health monitoring technology.

## Overview

The KY039 Sensor Finger Heartbeat Measurement Sensor Module is a compact and efficient device designed for Arduino enthusiasts. It operates at 5V and provides real-time heart rate data, making it an essential tool for health monitoring projects. With its user-friendly design, it caters to both beginners and experienced developers, ensuring accurate readings for various applications.

## Description

Item Description This project uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse. Pulse monitor works as follows: The LED is the light side of the finger, and 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 slight changed. We chose a very high resistance resistor R1, because most of the light through the finger is absorbed,it is desirable phototransistor sensitive enough.Resistance can be selected by experiment to get the best results. The most important is to keep the shield stray light into the phototransistor. For home lighting that is particularly important because the lights at home mostly based 50HZ or 60HZ fluctuate, so faint heartbeat will add considerable noise. Package Including: 1pcs Finger Measuring Heartbeat Sensor Module for Arduino

## Features

- Reland Sung

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KNTSTF3 |
| Best Sellers Rank | #1,758,487 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #519 in Sensor Blocks |
| Brand | Reland Sung |
| Brand Name | Reland Sung |
| Manufacturer | Reland Sung |
| Material Type | Copper |
| Model | KY-039 |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Number of Items | 1 |
| Operating Temperature | 20 °C |
| Part Number | 722704680394 |
| UPC | 722704680394 |
| Voltage | 5 volts |

## Product Details

- **Voltage:** 5 Volts
- **Manufacturer:** Reland Sung
- **Mounting Type:** Surface Mount
- **Brand:** Reland Sung
- **Number of Channels:** 1

## Images

![KY039 Sensor Finger Heartbeat Measurement Sensor Module for Arduino Finger Heartbeat Module KY-039 5V - Image 1](https://m.media-amazon.com/images/I/61L8Dz9ykAL.jpg)
![KY039 Sensor Finger Heartbeat Measurement Sensor Module for Arduino Finger Heartbeat Module KY-039 5V - Image 2](https://m.media-amazon.com/images/I/51X3VFe9qOL.jpg)
![KY039 Sensor Finger Heartbeat Measurement Sensor Module for Arduino Finger Heartbeat Module KY-039 5V - Image 3](https://m.media-amazon.com/images/I/61O9Ei0oIvL.jpg)

---

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**Shop now:** [https://www.desertcart.pt/products/99589636-ky039-sensor-finger-heartbeat-measurement-sensor-module-for-arduino-finger](https://www.desertcart.pt/products/99589636-ky039-sensor-finger-heartbeat-measurement-sensor-module-for-arduino-finger)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-11-15*