---
product_id: 191926076
title: "Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs)"
brand: "mxrs"
price: "₨7443"
currency: LKR
in_stock: true
reviews_count: 8
url: https://www.desertcart.lk/products/191926076-hall-effect-magnetic-sensor-module-3144e-a3144-hall-effect-sensor
store_origin: LK
region: Sri Lanka
---

# Fast response time DC 5V operation High sensitivity Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs)

**Brand:** mxrs
**Price:** ₨7443
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Projects with Precision Power!

## Quick Answers

- **What is this?** Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs) by mxrs
- **How much does it cost?** ₨7443 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/191926076-hall-effect-magnetic-sensor-module-3144e-a3144-hall-effect-sensor)

## Best For

- mxrs enthusiasts

## Why This Product

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

## Key Features

- • **Compact Design:** Small size for easy installation in any project.
- • **Rapid Response:** Instantaneous feedback for real-time applications.
- • **Smart Tech Ready:** Perfect for smart cars and innovative tech solutions.
- • **Precision Performance:** Experience unparalleled accuracy with high reliability.
- • **Versatile Compatibility:** Seamlessly integrates with Arduino, Raspberry Pi, and more.

## Overview

The Hall Effect Magnetic Sensor Module (3144E A3144) by MUZHI is a compact and highly sensitive sensor designed for various applications, including Arduino and smart cars. Operating at a DC 5V voltage, it provides a digital voltage signal based on magnetic induction intensity, ensuring fast response times and reliable performance.

## Description

Package Included: 6* HiLetgo Hall Effect KY-003 Magnetic Sensor Module Description: 1. Non-Contact Switch 2. Hall Switch Integrated Circuit Using hall Effect Principle, 3. USES The Semiconductor Integrated Technology Manufacturing Magnetic Susceptibility of the Circuit, 4. It is by the Voltage Regulator, Hall Voltage Generator, Differential Amplifier, Schmidt Triggers, Temperature Compensation and the Open Collector Output Stage Circuit Composed of Magnetic Sensitive Sensor Circuit 5. Its Input For the Magnetic Induction Intensity, the Output is a Digital Voltage Signal

## Features

- Model: KY-003. Working voltage: DC 5V.
- Hall switch integrated circuit using hall effect principle.
- Its Input For the Magnetic Induction Intensity, the Output is a Digital Voltage Signal
- Small size and high sensitivity. Fast response temperature and good performance. Precision and high reliability.
- Used for Arduino, Raspberry Pie, PIC, AVR, Smart Car,and so on.

## Images

![Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs) - Image 1](https://m.media-amazon.com/images/I/61hb6PvnJ9L.jpg)
![Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs) - Image 2](https://m.media-amazon.com/images/I/61QAll4+4HL.jpg)
![Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs) - Image 3](https://m.media-amazon.com/images/I/51araXd8CPL.jpg)
![Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs) - Image 4](https://m.media-amazon.com/images/I/61yumArbeDL.jpg)
![Hall Effect Magnetic Sensor Module, 3144E A3144 Hall Effect Sensor KY-003 DC 5V for Arduino PIC AVR Smart Cars by MUZHI(6 Pcs) - Image 5](https://m.media-amazon.com/images/I/61m3dc3UIML.jpg)

## Questions & Answers

**Q: Does voltage vary by the magnets distance (strength) or is it full on or off like contact closure?**
A: Full on or Off.

**Q: One amazon reviewer answered that this works at 3.3 v. that might not be true.  the specification says "operating voltage	4.5v to 24v." is this true?**
A: 1. To clarify operating voltage, do not exceed 5V.  This board does not have a voltage regulator and will be permanently damaged at 24V.
2. In terms of operating voltage, I have tested down to 2.5V with no issue.

**Q: what is the maximum speed of this sensor? will they be able to detect at 20kHz for a 20k rpm motor?**
A: According to the photo, the chip is an Allegro 3144. This chip has rise and fall times less than a microsecond so it should be fast enough for your application. If for some reason the items you receive are based on some other chip, then it may be too slow. Some of hall effect sensors have total rise/fall times greater than 30 msecs, which would not work for you.

**Q: How are these wired? There are no clear labels on the board (unless you count 'S' and '-')? What are the three pins?**
A: The S pin is the sensor output. The - on the other end is ground and the middle is the 5v in.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked great!
*by J***M on May 8, 2021*

Installed this on an RC truck wheel with a magnet glued to inner rim. Read it into an Arduino Mega with a library code using I2C interface to get ground speed (wheel rotations). Worked like a charm!

### ⭐⭐⭐⭐⭐ Good sensors
*by C***. on January 25, 2021*

It was great the hall effect sensors are efficient and effective.

### ⭐ Hall Effect Magnetic Sensor Module, 3144E A3144 by MUZHI(6 Pcs)
*by M***S on August 25, 2022*

This order contained 6 pieces of Hall Effect Magnetic Sensor boards. All 6 failed in that immediately upon 5 volts and GND being applied to the board the onboard LED would come on indicating that the S lead was low and testing proved that to be the case. All 6 boards contained 3144 sensors and upon replacing one of the failing board's 3144 with a new 3144 that I had purchased separately that board worked correctly in that no LED upon power being applied and a magnet in the vicinity of the new 3144 turned on the LED and the S lead went low as expected. A good guess based on the above failing board's 3144 being replaced would indicate that all 6 boards have a batch of bad 3144.Did not contact the seller or attempt to have them replaced them since I only needed 1 working board and it appears that repairs can be made with new 3144 as needed so not worth the effort.

## Frequently Bought Together

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-08*