Photoelectric Sensors are non-contact sensing devices that use a beam of light to detect the presence, absence, position, distance, or movement of objects in industrial automation systems. Known for their high-speed response, long sensing range, and reliable performance, these sensors are widely used in packaging, material handling, conveyor systems, assembly lines, logistics, food processing, and manufacturing applications. Available in through-beam, retro-reflective, and diffuse sensing types, photoelectric sensors provide accurate object detection regardless of shape, color, or material, helping improve process efficiency, quality control, and machine automation.