Features: Brand new and high quality Available on motherboards that support material detection functions. The blocking detection module has been set up in the factory, and you can use it when you receive the module. There is no need to operate on the module. If the replacement material is displayed after your machine is turned on, please cancel it and start printing directly. If you are not satisfied with the length of filament set aside when the blocking detection module the alarm, you can operate the blocking detection module by pressing the knob and rotating it, the specific methods is: first plug the module into your printer filament detection socket, the module display shows four horizontal lines when the power is on, at this time long press the middle button for three seconds will jump to the next page, please rotate the button to select the P14 modes, and then continue to long press for three seconds Enter the next page appears P0000, please short press will appear P00.0, at this time you need to rotate the button to set time you want to set, set it and then long press for three seconds to enter the page of four horizontal lines power on can be. The default is 99.9 seconds within the material no action will the alarm. This can be determined according to the printing speed of your machine. Please try to ensure that your printing material can move withins time you set. Specifications: Material:Plastic Size:Approx.87x88.43mm/3.42x3.48inch Package Includes: 1x Filament Sensor note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.