DC 12V Automatic Infrared PIR Motion Sensor Switch

The DC 12V Automatic Infrared PIR Motion Sensor Switch is a high-sensitivity motion detection device that uses passive infrared technology to sense body heat and motion. Once motion is detected, it automatically powers on connected LED lights, bulbs, or electronic devices, and after a preset delay, it turns them off if no further movement is detected.

This intelligent switch is a perfect solution for energy-saving lighting control, automatic hallway lights, staircase illumination, and smart home automation. Its sleek black housing and easy 2-wire installation make it suitable for both DIY and professional automation systems.

Key Features

✅ Automatic Lighting Control: Turns on lights when motion is detected and turns them off after a delay.
✅ Energy Saving: Reduces unnecessary power usage by operating only when motion is present.
✅ Wide Detection Range: Detects human movement within a range of up to 5–8 meters.
✅ Adjustable Delay Time: Configure how long the light stays ON after last detected motion.
✅ Compact & Stylish Design: Durable black casing fits perfectly in modern interiors.
✅ Plug & Play: Easy to integrate into existing 12V lighting or Arduino-based automation systems.
✅ High Sensitivity: Reliable detection even in low light conditions.

Technical Specifications

• Operating Voltage: DC 12V

• Detection Range: 5 to 8 meters

• Detection Angle: 120°

• Load Capacity: Up to 60W LED load

• Delay Time: Adjustable (approx. 5s – 300s)

• Working Temperature: -20°C to +60°C

• Color: Black

• Output Type: DC 12V output

• Technology: PIR (Passive Infrared)

• Mounting Type: Wall or ceiling mount

How It Works

This PIR motion sensor detects changes in infrared radiation emitted by moving people or animals. When someone enters its detection zone, the sensor output goes HIGH, powering the connected LED light or device. After no movement is detected for the set delay time, it automatically switches OFF.
You can connect it directly to LED strips, bulbs, or use it as an input trigger for Arduino-based home automation systems.

Applications

💡 Automatic LED Light Control (rooms, corridors, garages)
🏠 Smart Home Automation
🕹️ Arduino or IoT Motion Detection Projects
🚪 Security Alarm and Motion Triggered Systems
🚻 Restroom and Hallway Lighting
🏢 Office or Warehouse Energy Saving Systems

Precautions

⚠️ Ensure correct DC 12V power supply to avoid damage.
⚠️ Avoid placing the sensor near heat sources or direct sunlight.
⚠️ For indoor use or protected environments only.
⚠️ Adjust the delay and sensitivity settings carefully before permanent installation.

Internal Links

• Sensors & Modules

• Arduino and Accessories

• IoT & Smart Solutions

• Tools and Accessories

YouTube Tutorial

🎥 Watch: How to Use PIR Motion Sensor with LED Light & Arduino

Summary

The DC 12V Automatic Infrared PIR Motion Sensor Switch (Black) is an essential device for smart lighting and automation systems. It automatically controls LED lights and other electronic devices based on human motion, improving energy efficiency and convenience. With its adjustable delay, wide detection range, and stylish design, it’s perfect for home automation, security, and industrial applications.