Laser Diode Module
৳100
Magnetic Reed Switch Sensor Module
৳110
The Magnetic Reed Switch Sensor Module is a compact and effective solution for detecting open and closed states in electronic projects. Commonly used in door/window security alarms, smart home systems, and automation projects, this sensor works by opening or closing a circuit when a magnetic field is near. Easy to install and integrate with Arduino, Raspberry Pi, and microcontroller circuits, it’s widely used by Bangladeshi students, hobbyists, and security system builders. A budget-friendly yet dependable choice for adding magnetic sensing to your projects.
The Reed Switch Sensor Module is a magnetic field detection sensor that delivers reliable, contactless switching when exposed to a magnetic field. It integrates a reed switch with an LM393 comparator circuit, along with status indicators and passive components for stability, durability, and ease of use.
Designed with a simple plug-and-play interface, it works seamlessly with Arduino, Raspberry Pi, and other digital logic systems. This module is ideal for hobby and industrial projects where motion, position, or security monitoring is required.
Key Features
- Contactless magnetic field detection
- Stable digital output (High/Low)
- Built-in LM393 comparator for precise switching
- Power and output status LEDs for easy debugging
- Compact and robust PCB design
- Compatible with 3.3V and 5V logic systems
- Long-lasting and low-cost
Technical Specifications
Feature | Specification | |||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Operating Voltage | 3.3V to 5V DC | |||||||||||||||||||||||||||||
Output Format | Digital output (0 or 1) | |||||||||||||||||||||||||||||
Main IC | LM393 Dual Comparator | |||||||||||||||||||||||||||||
Indicators | Power LED, Output Status LED | |||||||||||||||||||||||||||||
PCB Size | 32mm x 14mm | |||||||||||||||||||||||||||||
Interface Pins | VCC, GND, OUT (3-pin header) | |||||||||||||||||||||||||||||
Compatibility | Microcontrollers (Arduino, etc.) | |||||||||||||||||||||||||||||
Design | Compact, easy to mount | |||||||||||||||||||||||||||||
Application
- Contactless magnetic field detection
- Stable digital output (High/Low)
- Built-in LM393 comparator for precise switching
- Power and output status LEDs for easy debugging
- Compact and robust PCB design
- Compatible with 3.3V and 5V logic systems
- Long-lasting and low-cost
Packaging Details
- 1 × Magnetic Reed Switch Sensor Module
Magnetic Reed Switch Sensor Module – Frequently Asked Questions
What is a Reed Switch Sensor Module?
A Reed Switch Sensor Module detects magnetic fields using a reed switch that closes or opens the circuit. It outputs a digital signal (0 or 1) based on the presence of a magnet.
A Reed Switch Sensor Module detects magnetic fields using a reed switch that closes or opens the circuit. It outputs a digital signal (0 or 1) based on the presence of a magnet.
How does the Reed Switch Sensor work with Arduino?
Connect the sensor’s OUT pin to a digital input pin of an Arduino. When a magnet is near the reed switch, the output becomes LOW (0); otherwise, it remains HIGH (1).
Connect the sensor’s OUT pin to a digital input pin of an Arduino. When a magnet is near the reed switch, the output becomes LOW (0); otherwise, it remains HIGH (1).
What is the operating voltage of this sensor?
The module operates with a supply voltage between 3.3V and 5V, making it compatible with both 3.3V and 5V logic systems.
The module operates with a supply voltage between 3.3V and 5V, making it compatible with both 3.3V and 5V logic systems.
What type of output does the sensor provide?
It provides a digital output:
It provides a digital output:
- LOW (0) when a magnetic field is present
- HIGH (1) when no field is present
Where can this reed switch sensor be used?
Common uses include:
• Door/window sensors
• Alarm and security systems
• Smart appliances
• Liquid/gas/electricity meters
• Robotics and automation projects
Common uses include:
• Door/window sensors
• Alarm and security systems
• Smart appliances
• Liquid/gas/electricity meters
• Robotics and automation projects
Is the sensor suitable for outdoor use?
This sensor is not weatherproof by default. For outdoor applications, use a waterproof enclosure for protection.
This sensor is not weatherproof by default. For outdoor applications, use a waterproof enclosure for protection.
How to test if a Reed Switch Sensor is working?
Connect power (3.3V–5V) and monitor the output. Bring a magnet close to the sensor and observe the onboard output LED or measure voltage changes at the output pin.
Connect power (3.3V–5V) and monitor the output. Bring a magnet close to the sensor and observe the onboard output LED or measure voltage changes at the output pin.
Can the sensitivity be adjusted?
Some modules have an onboard potentiometer to fine-tune sensitivity. If available, rotate it gently to change magnetic field detection response.
Some modules have an onboard potentiometer to fine-tune sensitivity. If available, rotate it gently to change magnetic field detection response.
What is the module’s size?
The PCB measures 31.1mm x 14.5mm, allowing it to fit easily into compact or embedded systems.
The PCB measures 31.1mm x 14.5mm, allowing it to fit easily into compact or embedded systems.
