Omron E3Z-D81K-M3J Photoelectric Sensor

The Omron E3Z-D81K-M3J is a compact diffuse-reflective photoelectric sensor designed for reliable object detection in industrial automation, ideal for conveyors, packaging lines, and other automated setups that require stable sensing. It uses diffuse-reflective sensing with background suppression to detect targets at up to approximately 100 mm, powered from 12 to 24 VDC with an infrared LED light source and an NPN output via an M8 3-pin connection. The unit is IP67 rated and housed in PBT industrial plastic, built for rugged performance in harsh environments, with a fast typical response time of 1 ms and an operating temperature range of -25°C to +55°C. Protection features include reverse polarity and short-circuit protection. This part belongs to Omron’s E3Z Series and carries the MPN E3Z-D81K-M3J. It is commonly used for object detection, positioning, and counting in applications such as packaging lines, food processing, automotive manufacturing, and logistics conveyors where compact size and dependable sensing are required. Common replacements include E3Z-D62, E3Z-D82, and E3FA-DN12.