Photoelectric Beam Speed Sensor Module.

The Photoelectric Beam Speed Sensor Module (Slot-Type Optocoupler) is a high-precision infrared detection module used for speed measurement, counting, and motion sensing in robotics and automation projects. It features a U-shaped slot-type IR emitter and receiver pair, which detects objects passing through the slot by interrupting the infrared beam. When an object passes through, the module generates a digital pulse output that can be counted to measure rotational speed (RPM) or linear movement.