Features: Enhancing print efficiency and prevent material breakage for X1/X1C Series Hall switcher Board, suitable for precise filament detection in multiple color 3D printing projects. Features FPC flexible cable for integration and PVC construction, ensuring reliable filament sensory and compatibility for X1/X1C extruder. Ideal for 3D printing enthusiasts and professional upgraded for X1/X1C printers for improved error prevention and material handling accuracy. Resolve false "filament unloading failure" alerts, cutter jams, or extrusion errors during printing tasks requiring consistent filament monitoring. Effortlessly replace by disconnecting heater/fan cables and installing this plug and play filament detection module for uninterrupted 3D printing operational. Specifications: Component:PVC Size:Approx.94x14.2mm/3.7x0.56inch Package Includes: 1 Set Hall switcher Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.