QTR-HD-05A 5 Channel Analog Infrared Sensor Module - 4mm is a state-of-the-art module designed to deliver precise and reliable sensing for your electronic projects. Engineered to detect variations in infrared light, this sensor module is perfect for applications that require precise object detection and line following capabilities. With 5 individual channel outputs, the QTR-HD-05A provides detailed analog readings, allowing for advanced processing and implementation in robotics, automation, and more. Its compact 4mm size ensures easy integration into any design without sacrificing performance.