The Omron E3Z-R81X-S0SRW-M5 Photoelectric Sensor is a high-performance retroreflective type with 4-meter sensing distance and DC three-wire PNP type in a special design. The sensor has an improved monostable response time of just 1ms and can detect objects with a reflectance of 10%. It is designed to be mounted in tight spaces with its slim and compact size, making it ideal for applications with limited space. It has a robust IP66/IP67 ingress protection rating, as well as a new display window for easy adjustment during commissioning, maintenance, and routine operation. This part has been optimized for detected object size-to-sensing distance ratio and can be used in a wide range of applications, including in robotics, automated production, packaging, and sorting.