The VL18-RPP3-ROL is a high-quality retro-reflective photoelectric sensor from V5 Group. It is designed to detect photo-optical surfaces with great accuracy and reliability, making it ideal for industrial automation applications. This sensor is easy to install and use, and it comes with a built-in amplifier for added convenience. With its rugged construction and long-lasting performance, the VL18-RPP3-ROL is a top choice for professionals in the automation industry.