Based on this product's specifications, here are some alternatives and similar models
Delock 91865 Slot Sensor 5 mm Type K with 4 Open Cable Ends PNP L/D Switchable 2 m
Summary description:
The Delock 91865 is a 5 mm slot sensor (Type K) designed for precise object detection in industrial automation. It features a 2-meter cable with 4 open ends, PNP output, and switchable Light-On/Dark-On (L/D) operation modes. This reliable photoelectric sensor is suitable for position sensing, counting, and limit detection tasks in various automated systems requiring high accuracy and consistent performance.