1.75mm Filament Runout Detection Sensor Module with 1m Cable

The 1.75mm Filament Runout Detection Sensor Module is an essential upgrade for 3D printers designed to prevent failed prints caused by filament exhaustion, snapping, or breakage. Utilizing a highly reliable mechanical microswitch, this module continuously monitors the presence of 1.75mm filament. If the filament runs out or breaks mid-print, the sensor instantly triggers a signal to pause the print, allowing you to reload material and resume without losing your progress.

This smart sensor features a transparent outer casing, enabling makers and engineers to easily inspect the internal switch state and filament path. It is highly compatible with popular 3D printer motherboards (such as Creality, SKR, MKS, and RAMPS) and works seamlessly with Marlin, Klipper, and RepRap firmware. The low-friction inlet and outlet design ensures smooth filament feeding without adding resistance to your extruder setup.

Features:

• Reliable Mechanical Trigger: Features a wear-resistant microswitch for instant and precise filament runout detection.
• Transparent Housing: Clear casing allows for quick visual monitoring of the internal mechanism and filament alignment.
• Smooth Filament Path: Designed with low-friction entry and exit ports to prevent filament scraping or snagging.
• Long Connection Cable: Comes with a 1-meter 3-pin cable, making it easy to route through cable chains and enclosures.
• Wide Firmware Support: Fully compatible with Marlin (M119 command), Klipper, and RepRap firmware configurations.
• Universal Compatibility: Works with all standard 1.75mm filaments including PLA, ABS, PETG, TPU, and Wood.

Package Includes:

1 x 1.75mm Filament Runout Detection Sensor Module (Transparent)

1 x 1m 3-Pin Connection Cable