A3144 Hall Effect Sensor Magnetic Switch Module KY-003

A3144 Hall Effect Sensor Magnetic Switch Module

The A3144 Hall Effect Sensor Magnetic Switch Module is a compact, reliable electronic component designed for detecting magnetic fields with precision. Compatible with the popular KY-003 form factor, this module is an ideal replacement or expansion piece for Arduino, Raspberry Pi, and other microcontroller-based projects. Whether you're building a speed sensor, proximity detector, or position encoder, this module delivers consistent, dependable output.

Key Features

• High Sensitivity Detection: Built around the A3144 Hall-effect IC for accurate and stable magnetic field sensing.
• KY-003 Compatible: Drop-in replacement or add-on for existing KY-003 Hall sensor setups.
• SMD Construction: Surface-mount design for a compact footprint and reliable solder joints.
• Wide Compatibility: Works seamlessly with Arduino, Raspberry Pi, ESP32, STM32, and other common development platforms.
• Flexible Quantity Options: Available in packs of 1, 5, 10, or 20 — order exactly what your project needs.
• Easy Integration: Simple 3-pin interface (VCC, GND, Signal) for quick wiring and setup.
• Durable & Reliable: Designed for long-term use in both prototyping and finished builds.

Specifications

• Sensor IC: A3144 Hall Effect
• Module Type: Magnetic Switch / Digital Output
• Compatible Format: KY-003
• Construction: SMD (Surface Mount Device)
• Output: Digital (High/Low)
• Operating Voltage: 4.5V – 24V DC
• Pack Sizes: 1 pc, 5 pcs, 10 pcs, 20 pcs

What's in the Box

• A3144 Hall Sensor Magnetic Switch Module(s) (SMD) — quantity as selected

Perfect For

• Arduino & Raspberry Pi DIY electronics projects
• Magnetic proximity and position sensing
• Speed detection (motor RPM, wheel encoders)
• Replacing faulty KY-003 Hall sensor modules
• Robotics, automation, and smart home builds

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Frequently Asked Questions

Q: What does the A3144 Hall Effect Sensor Magnetic Switch Module do?

A: The A3144 Hall Effect Sensor Magnetic Switch Module detects the presence of a magnetic field and outputs a digital HIGH or LOW signal. It is commonly used in Arduino and microcontroller projects for proximity sensing, speed detection, and position encoding.

Q: Is this module compatible with KY-003 Hall sensor setups?

A: Yes — this module is a direct KY-003 compatible replacement. It uses the same 3-pin interface (VCC, GND, Signal), making it easy to swap into existing circuits or breadboard setups without any wiring changes.

Q: What quantity options are available for the A3144 Hall Sensor Module?

A: You can order this module in packs of 1, 5, 10, or 20 pieces — making it cost-effective whether you need a single replacement or a supply for multiple projects.

Q: What microcontroller platforms are compatible with this Hall sensor module?

A: The A3144 Hall Sensor Module is compatible with a wide range of platforms including Arduino (Uno, Mega, Nano), Raspberry Pi, ESP8266, ESP32, STM32, and most other development boards that support digital input signals.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.