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The PIR (Passive Infrared) motion sensor » is a widely used device designed to detect movement by measuring changes in infrared radiation, typically emitted by humans and animals. With an effective PIR motion sensor range of up to 12 meters, it can cover a substantial area, making it ideal for security systems, automatic lighting, and energy-saving applications. To ensure optimal performance, knowing how to test a PIR sensor is essential. This can typically be done by walking within its detection range to see if it responds correctly, ensuring it activates when it should and remains inactive otherwise. When it comes to installation, understanding how to connect a PIR sensor is crucial. Generally, the sensor will have three main connections: power (VCC), ground (GND), and output (OUT). Properly wiring these connections will allow the PIR sensor to function effectively, triggering alarms or lights when detecting motion. Overall, the PIR motion sensor is an efficient solution for various applications, providing reliable motion detection and energy efficiency.