### Perfect Compatibility for Creality K2 Series Specifically designed for Creality K2 / K2 Pro / K2 Plus 3D printers, matching the original extruder front cover structure for seamless installation. ### High-Precision Filament Runout Detection Built-in sensitive optical sensor accurately monitors filament presence, automatically pauses printing when filament runs out or gets stuck, preventing print failures and material waste. ### Easy Plug-and-Play Installation Comes with mounting screws, the sensor module features a direct-fit connector, requiring no complex wiring or firmware modification, just replace the original module and get back to printing. ### Stable & Durable Performance Made of high-quality PCB board and electronic components, the sensor ensures reliable signal transmission and long service life, suitable for continuous high-temperature printing environments. ### Essential Upgrade for Long Printing Tasks Ideal for overnight or multi-hour printing jobs, eliminating the need for constant manual monitoring, improving print success rate and work efficiency for K2 series users.