[High Precision] BIGTREETECH SFS V2.0 Smart Filament Sensor uses high-precision photoelectric induction technology for accurate detection with a detection length of 2.88 mm. It features an upgraded filament loading lever for easy and flexible filament loading. [Real-Time Status Indication] The BTT filament runout sensor detects filament runout, filament breakage, nozzle clogging, and extruder malfunctions. It provides distinct LED indicators for different issues, displays error alerts on the screen, and automatically pauses printing to prevent waste. [Bi-Directional Feeding] The SFS V2.0 supports bi-directional filament feeding and is not restricted by installation orientation, enabling quick, easy installation and flexible positioning. [Wide Compatibility] The BIGTREETECH Smart Filament Runout Sensor V2.0 is compatible with Klipper, Marlin, and RRF firmware. It works with any motherboard that has available I/O ports, including SKR MINI E3 V3.0, Octopus V1.1 / Octopus Pro, SKR V1.4 Turbo, SKR 3, SKR Pico, and Manta M4P / M5P / M8P. (Note: Contact technical support before using motherboards without a dedicated filament runout port.) [Easy Installation] The SFS V2.0 features three mounting holes on the back for secure and simple installation using a bracket. It supports both direct-drive and Bowden extruders. (For wiring and firmware setup, refer to the official BIGTREETECH GitHub documentation.) Material: Plastic Color: Black Package Includes: 1 x Filament Sensor Note: Color may vary slightly due to lighting and screen differences. Measurement tolerance: ±