Reed Switch Module – Magnetic Contact Sensor

The Reed Switch Module – Magnetic Contact Sensor is a compact and highly responsive module used for magnetic field detection. It is ideal for applications involving door/window magnetic sensors, level meters, gas or water meters, and various program-controlled devices. This module outputs a digital signal when a magnetic field is present, enabling precise control over switching actions.

Built using the LM393 voltage comparator, the module is capable of operating at voltages between 3.3V and 5V. It produces a clean digital output (HIGH or LOW), suitable for interfacing with microcontrollers like Arduino, Raspberry Pi, or ESP32 boards. The onboard bolt holes ensure easy installation into enclosures or panels, making it a preferred choice for embedded electronics and smart appliance integration.

🔧 Key Features

• Reed switch magnetic field sensor with digital output
• Wide operating voltage range: 3.3V to 5V
• Output format: Digital switching (0 or 1)
• Uses LM393 comparator for stable performance
• Mounting-friendly with bolt holes
• Compact PCB for space-saving integration

📐 Technical Specifications

📌 Applications

• Door and window magnetic sensors
• Disinfection cabinets and smart appliances
• Water, gas, and electric meters
• Automation and relay trigger circuits
• Robotic and embedded system integration

💡 Why Choose This Module?

The Reed Switch Module offers a reliable, easy-to-use magnetic sensing solution with clean digital output and wide voltage compatibility. Its pre-drilled mounting holes and compact size make it ideal for both consumer devices and hobbyist electronics projects.

📦 Package Includes

• 1 × Reed Switch Module – Magnetic Contact Sensor