Based on this product's specifications, here are some alternatives and similar models
Grove optical fork sensor Panasonic PM-T65-P T-type, 5–24 V DC, light-/dark-switching
Summary description:
Panasonic PM-T65-P is a T-type fork optical sensor (gabel‑lichtschranke) for object detection with supply voltage 5–24 V DC. It supports both light‑switching (bright ON) and dark‑switching output modes, making it suitable for presence/sensing tasks in automation, conveyor monitoring, and position detection where a compact fork sensor with selectable switching behaviour is required.