LM393 Linear Hall Effect Sensor Module – Dual Output Magnetic Field Detector

The LM393 Linear Hall Effect Sensor Module is a versatile, dual-output sensor designed to detect the presence and strength of magnetic fields. Built around the reliable S49E linear Hall effect sensor and LM393 comparator, it provides both analog and digital outputs, making it highly useful in a wide range of applications including rotational speed sensing, magnetic field mapping, robotics, and automation systems.

This module operates on a low input voltage (3.3V–5V) and is compact in size, making it easy to integrate into existing designs. When a magnetic field is detected, the digital output toggles high, while the analog output linearly varies according to the magnetic strength. Whether you’re building a speedometer, a door detector, or robotic sensors, the LM393 module is an excellent choice for precision and flexibility.

🔧 Key Features

• Dual output: Analog (linear) and digital (threshold)
• Uses the S49E Hall Effect Sensor and LM393 comparator
• Highly sensitive to magnetic fields with fast response
• Onboard power and signal indicator LEDs
• Potentiometer for digital output threshold adjustment
• Compact PCB design with 3-pin header
• Compatible with Arduino, Raspberry Pi, and other microcontrollers

📐 Technical Specifications

📌 Applications

• RPM sensing and tachometer systems
• Robot speed and position feedback
• Magnetic proximity detection
• DIY magnetic switches and automation
• Door status sensing and home automation

💡 Why Choose This Module?

The LM393 Linear Hall Effect Sensor Module offers both digital and analog feedback, giving you flexible options for magnetic field detection. It’s ideal for learning, experimentation, and integration in real-world automation and robotics projects.

📦 Package Includes

• 1 × LM393 Linear Hall Effect Sensor Module