The IO-Link Photoelectric sensors O18 miniature type is a product line associated with industrial automation, commonly offered by various manufacturers specializing in sensor technology. These sensors are compact (O18 refers to an 18mm housing diameter) and utilize IO-Link communication, a standardized protocol (IEC 61131-9) for smart sensor/actuator connectivity. While not tied to a single brand, companies like Balluff (Germany), ifm (Germany), or Pepperl+Fuchs (Germany) are prominent producers of such sensors. They serve industries like manufacturing, packaging, and logistics, providing precise object detection (e.g., presence, distance) in tight spaces. The IO-Link functionality enables real-time data exchange and parameterization, enhancing Industry 4.0 integration.