---
product_id: 433906131
title: "Reland Sun 5pcs KY-039 Finger Heartbeat Heart Rate Detector Measurement Sensor Module 3.3V 5V"
brand: "reland sun"
price: "฿478"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/433906131-reland-sun-5pcs-ky-039-finger-heartbeat-heart-rate-detector
store_origin: TH
region: Thailand
---

# Infrared LED 3.3V-5V Power Pulse Detection Reland Sun 5pcs KY-039 Finger Heartbeat Heart Rate Detector Measurement Sensor Module 3.3V 5V

**Brand:** reland sun
**Price:** ฿478
**Availability:** ✅ In Stock

## Summary

> ❤️ Feel the Pulse of Innovation!

## Quick Answers

- **What is this?** Reland Sun 5pcs KY-039 Finger Heartbeat Heart Rate Detector Measurement Sensor Module 3.3V 5V by reland sun
- **How much does it cost?** ฿478 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/433906131-reland-sun-5pcs-ky-039-finger-heartbeat-heart-rate-detector)

## Best For

- reland sun enthusiasts

## Why This Product

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

## Key Features

- • **⚡ Versatile Voltage:** Compatible with both 3.3V and 5V systems for flexible integration.
- • **💖 Real-time Feedback:** Red LED flashes with each heartbeat for instant visual feedback.
- • **🛠️ Easy Integration:** Breakout board design simplifies connection to your projects.
- • **🔍 Precision Monitoring:** Utilizes advanced infrared technology for accurate heartbeat detection.
- • **📊 Ideal for Prototyping:** Perfect for developers and makers looking to enhance health monitoring applications.

## Overview

The Reland Sun 5pcs KY-039 Finger Heartbeat Sensor Module is a cutting-edge device designed for precise heartbeat detection. Operating at a versatile voltage of 3.3V to 5V, this module features a bright infrared LED and a phototransistor that work together to monitor your pulse. With its easy-to-use breakout board design, it's perfect for developers and hobbyists looking to create health-focused projects.

## Description

Reland Sun 5pcs KY-039 Finger Heartbeat Heart Rate Detector Measurement Sensor Module 3.3V 5V

## Features

- Heartbeat sensor on a breakout board.
- Operating voltage 3.3 V - 5 V
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Reland Sun |
| Manufacturer reference | 1 |
| Manufacturer | Reland Sun |

## Images

![Reland Sun 5pcs KY-039 Finger Heartbeat Heart Rate Detector Measurement Sensor Module 3.3V 5V - Image 1](https://m.media-amazon.com/images/I/41jicA7BsRL.jpg)

---

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**Shop now:** [https://www.desertcart.co.th/products/433906131-reland-sun-5pcs-ky-039-finger-heartbeat-heart-rate-detector](https://www.desertcart.co.th/products/433906131-reland-sun-5pcs-ky-039-finger-heartbeat-heart-rate-detector)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-11*