Utilizes infared beam interruption with fast 2ms response time, outperforming traditional sensors. high sensitivity for accurate motion and positioning without false. Ideal for robotics and industrial applications. Features 3 5V working voltages, compatibility with other boards. Provides normally open signals output for seamless connection with mainstream controllers and platforms. Clear interfaces definition and straightforward wiring. Just add a pull up resistor between signals and positive lines for quick microcontroller port integration. Detects any beam interrupting objects, not limited to metal. Perfect for robotics competitions, speed measurement, smart devices, sensing counters, and educational models. Package includes: 10pcs Infared Photoelectric Switches Sensors