ALLNET 4duino Magnetic Reed Sensor for Smart Car (ALL_OY_3440)

The ALLNET 4duino Magnetic Reed Sensor is a reliable and easy-to-use digital sensor designed for smart car projects and automation. It detects the presence of a magnetic field and outputs a digital HIGH/LOW signal, making it ideal for position sensing, door/window alarms, and robotics. The sensor operates at 3.3V to 5V DC and is compatible with Arduino, Raspberry Pi, ESP32, and ESP8266 platforms. With a compact module size of 32 mm x 14 mm x 7 mm and mounting holes, it integrates seamlessly into your projects.

Advantages

This reed sensor offers a simple digital interface, fast response time (<1 ms), and a typical detection range of 5-15 mm. It includes three modules in the package, providing excellent value for prototyping and education. The on-board power LED indicates operation status, and the normally open (NO) contact configuration ensures straightforward integration.

Suitable for

• Smart car obstacle detection and line following
• Door and window alarm systems
• Position and limit sensing in automation
• Magnetic field presence detection
• Arduino, Raspberry Pi, ESP32, and ESP8266 projects

Key specifications

• Sensor Type: Reed Switch
• Detection Method: Magnetic Field
• Output Signal: Digital (HIGH/LOW)
• Operating Voltage: 3.3V - 5V DC
• Contact Configuration: Normally Open (NO)
• Max Switching Voltage: 100V DC
• Max Switching Current: 0.5A
• Max Switching Power: 10W
• Interface Pins: 3 (VCC, GND, Digital Output)
• Module Dimensions: 32 mm x 14 mm x 7 mm
• Detection Range: 5-15 mm (depending on magnet strength)
• Response Time: <1 ms
• Operating Temperature: -20°C to +85°C
• Mounting Holes: 2 (approx. 3mm diameter)
• Included Modules: 3

Recommendations

For best performance, use a strong neodymium magnet and ensure proper alignment. The sensor can be directly connected to digital input pins of microcontrollers. Suitable for both hobbyist and educational applications.