Based on this product's specifications, here are some alternatives and similar models
3D filament sensor Flashforge Creator 3 Pro – filament runout and jam detection accessory
Summary description:
Filament sensor for Flashforge Creator 3 Pro designed to detect filament runout and feeding issues. This accessory monitors filament presence and pauses printing if the filament is exhausted or jammed, helping prevent failed prints and material waste. Compatible with the Creator 3 Pro series, it simplifies filament management and improves print continuity for professional and hobby use.