---
product_id: 419644401
title: "A3144 Hall Effect Sensor 3Pins Magnetic Detector for Arduino (Pack of 20 pcs)"
brand: "eplzon"
price: "€ 14.74"
currency: EUR
in_stock: true
reviews_count: 8
category: "Eplzon"
url: https://www.desertcart.sk/products/419644401-a3144-hall-effect-sensor-3pins-magnetic-detector-for-arduino-pack
store_origin: SK
region: Slovakia
---

# 4-24V wide voltage range High precision & fast response -40°C to 125°C operating temp A3144 Hall Effect Sensor 3Pins Magnetic Detector for Arduino (Pack of 20 pcs)

**Brand:** eplzon
**Price:** € 14.74
**Availability:** ✅ In Stock

## Summary

> 🎯 Detect with precision, control with confidence!

## Quick Answers

- **What is this?** A3144 Hall Effect Sensor 3Pins Magnetic Detector for Arduino (Pack of 20 pcs) by eplzon
- **How much does it cost?** € 14.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/419644401-a3144-hall-effect-sensor-3pins-magnetic-detector-for-arduino-pack)

## Best For

- eplzon enthusiasts

## Why This Product

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

## Key Features

- • **Built to Brave the Elements:** Reliable performance across extreme temperatures from -40°C to 125°C—perfect for demanding industrial and outdoor applications.
- • **Precision That Never Misses:** High sensitivity and fast response time deliver accurate magnetic detection for flawless automation and control.
- • **Pack of 20 for Bulk Innovation:** Get 20 sensors in one pack—ideal for prototyping, scaling projects, or outfitting entire production lines without running out.
- • **Power Your Projects with Confidence:** Operates seamlessly from 4V up to 24V, ensuring compatibility with a wide range of Arduino and embedded systems.
- • **Versatile Applications, Limitless Possibilities:** From brushless DC motors to safety alarms and textile machinery, this sensor adapts to your most ambitious automation needs.

## Overview

The EPLZON A3144 Hall Effect Sensor is a compact, high-precision magnetic detector designed for Arduino and industrial automation. It supports a wide voltage range (4-24V), operates reliably in extreme temperatures (-40°C to 125°C), and offers fast, sensitive magnetic detection. Supplied in a convenient pack of 20, it’s perfect for professionals seeking dependable, scalable sensor solutions across diverse applications like motor control, safety alarms, and textile machinery.

## Description

EPLZON 3Pins A3144/OH3144/44E/AH3144E Hall Effect Sensor Magnetic Detector for Arduino The A3144 Hall Effect Sensor Magnetic Detector are monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +125°C, and are more stable with both temperature and supply voltage changes.The unipolar switching characteristic makes these devices ideal for use with a simple bar or rod magnet. Supply Voltage: 28 V Reverse Battery Voltage:-35 V Continuous Output Current:25 mA Storage Temperature Range:-65°C to +170°C Package Content : 20 x Hall Effect Sensor

Review: Muy buenos días - Excelente
Review: Hall sensor for scooter motor - I ordered these to try and bring back life to my scooter hub motor. I couldn't get it working right but I dont think it was the hall sensors problem. Although these dont come insulated which could very well have been why they didnt work for me. So I unfortunately had to figure out a different option.

## Features

- Power supply voltage: Vcc 4～24V;Output reverse breakdown voltage: Vce 50V.
- Operating temperature range: -40℃ to 125℃;Storage temperature range: -55～150℃.
- Colour: Black
- Good performance: small size, high sensitivity, fast response, good temperature performance, high precision and high reliability.
- Application areas: Non-contact switch, automatic ignition, brake circuit, position, speed detection and control, safety alarm device, textile control system,Brushless DC motors, encoders, sewing equipment, textile machinery, household appliances,safety alarm devices and other automation control fields.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09PG3PGH6 |
| Best Sellers Rank | #88,584 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Hall Effect Sensors |
| Brand Name | EPLZON |
| Current Rating | 25 Milliamps |
| Customer Reviews | 4.4 4.4 out of 5 stars (124) |
| Included Components | no |
| Item Weight | 0.01 Kilograms |
| Manufacturer | EPLZON |
| Material Type | tile |
| Maximum Supply Voltage | 28 Volts (DC) |
| Measuring Range | 4.5 V to 24 V |
| Model | EP-A3144 |
| Mounting Type | Flange Mount |
| Output Type | NPN |
| Sensing Distance | 1 Centimeters |
| Specific Uses For Product | Speed,Temperature |
| Style Name | A3144 |
| UPC | 762917456591 |
| Upper Temperature Rating | 125 Degrees Celsius |

## Product Details

- **Brand:** EPLZON
- **Current Rating:** 25 Milliamps
- **Item Weight:** 0.01 Kilograms
- **Material:** tile
- **Style:** A3144

## Images

![A3144 Hall Effect Sensor 3Pins Magnetic Detector for Arduino (Pack of 20 pcs) - Image 1](https://m.media-amazon.com/images/I/71yEIfuymAL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Muy buenos días
*by C***A on February 14, 2026*

Excelente

### ⭐⭐⭐⭐ Hall sensor for scooter motor
*by M***T on December 13, 2025*

I ordered these to try and bring back life to my scooter hub motor. I couldn't get it working right but I dont think it was the hall sensors problem. Although these dont come insulated which could very well have been why they didnt work for me. So I unfortunately had to figure out a different option.

### ⭐⭐⭐⭐⭐ Apparently works down to 3.3v
*by J***E on April 11, 2025*

I don't think I noted the voltage range (4-24v) when i purchased these to work with my 3.3v logic board, but luckily they still work! Perhaps it changes the sensitivity characteristics or something else, but it works great for my purpose. I have 2 of them connected in parallel for an "emergency stop" function. In normal operation, magnets are in place over the sensors, maintaining an open drain and LOW signal pin. Only if BOTH magnets are removed from their slots (via a pull-cord), the signal pin is pulled high by the pullup resistor, signaling an emergency.

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-05-20*