Based on this product's specifications, here are some alternatives and similar models
Panasonic Einweg-Lichtschranke EX13BPN — Serie EX10/EX13BPN, Einweg-Lichtschranke, Reichweite 0.5 m
Summary description:
Panasonic EX13BPN is a one-way photoelectric sensor from the EX10/EX13BPN series with a specified sensing range of 0.5 m. Designed for object detection and presence sensing in automation and conveyor systems, it provides a compact sensing solution for short-range applications. Key elements include the one-way optical arrangement and compatibility with standard industrial control interfaces.