ELEGOO Neptune 4 Series - Filament Sensor

The ELEGOO Neptune 4 Series Filament Sensor is a replacement 3D printer component that monitors whether filament is being fed to the machine. If the material runs out or breaks during a print, the sensor detects the interruption and allows the printer to pause. This gives the user a chance to reload the filament and continue the job without aborting the process. It serves as a direct replacement for a malfunctioning detection system and integrates with the compatible printer hardware to restore automated material tracking.

This sensor is intended for owners and repair users maintaining compatible ELEGOO printers. Long or unattended prints carry a higher risk of filament interruptions that cause failed parts and wasted material. By restoring the pause function, the unit ensures the machine halts safely when the spool empties, so operators can fix the issue and resume the print once new material is loaded. The component helps keep operation continuous for complex or extended projects.

• 1 pc(s) per pack provides a single replacement unit
• Black
• 30 g weight
• 1.75 mm filament diameter, matching the standard size used by most desktop printers
• Compatible with PLA, ABS, PETG, TPU and Nylon
• Device compatibility covers ELEGOO Neptune 3 Pro, Neptune 3 Plus, Neptune 3 Max, Neptune 4, Neptune 4 Pro, Neptune 4 Plus, Neptune 4 Max and Centauri Carbon