Creativity 3D Printer Filament Detection Sensor Module Filament Run-Out Pause Detecting Monitor for 3D Printer Lerdge Board 1.75mm Filament (Black) (Amazon Affiliate)
US: https://amzn.to/4bvgV6C
FLSUN Q5 Filament Sensor Mount: https://www.thingiverse.com/thing:4693544
FLSUN Playlist: https://www.youtube.com/playlist?list=PLErU2HjQZ_ZNaTP5phh5oML4EAb80gerF