Magnetic Control Module Reed Switch Sensor

The Reed Switch Magnetic Sensor Module is a magnetic field detection module that uses a glass-encapsulated reed switch and an LM393 comparator IC to detect nearby magnets. When a magnet is brought close to the reed switch, the internal contacts close, causing the module to generate a digital output signal. The onboard potentiometer allows users to adjust the detection sensitivity, while status LEDs provide instant visual indication of power and signal output.

This module is ideal for security systems, door and window monitoring, position sensing, automation projects, and DIY electronics.

Key Features

• Detects magnetic field using reed switch technology.
• Available in Analog + Digital (Red) and Digital-only (Blue) versions.
• Compatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other MCUs.
• Built-in LM393 comparator for stable output.
• Adjustable sensitivity using onboard potentiometer.
• Operates from 3.3V to 5V.
• Fast response and low power consumption.
• Onboard power and status LEDs.
• Easy interface with microcontrollers.
• Mounting hole for convenient installation.

Technical Specifications

Applications

• Door and window security systems.
• Magnetic proximity detection.
• Position sensing.
• Industrial automation.
• Home automation.
• Smart locks.
• Electronic weighing equipment.
• Water meters.
• Gas meters.
• Refrigerators.
• Washing machines.
• Cameras.
• Electromagnetic relays.
• Level monitoring systems.
• Arduino learning projects.
• Robotics.
• IoT systems.

Precautions

• Use within the specified operating voltage range (3.3V5V).
• Do not expose the module to excessive moisture.
• Keep strong magnets away when not required.
• Adjust sensitivity carefully using the onboard potentiometer.
• Ensure correct wiring before powering the module.
• Avoid excessive mechanical stress on the reed switch.
• Disconnect power before installation or maintenance.
• Handle the glass reed switch carefully to avoid breakage.

Package Includes:

1 x Reed Switch Module.