Blue LED signals when filament is being fed; Blue LED goes off when filament is depleted.
【Only Compatible 32 bits Mainboard】like version 4.2.2,4.2.7, for Creality CR-10 V3,CR-10 V2,CR-10S Pro,CR-10 Max,CR-10S Pro V2,Ender 3,Ender-3S,Ender 3 Pro,Ender 3 V2,Ender-3 Max,Ender-6,CR-3040Pro,CR-5Pro,CR-5ProH(CT-380) and Sovol SV03/SV02/SV01 3D Printer
【Installation Bracket】for Ender 3/pro/v2, other models already have the installation holes or bracket.
【Intelligent Pause】When filament run-out or break, it will automatically stop printing. After you loaded the filament and hit restart button, it will resume printing, greatly save you time and materials!
【Attention】For Ender 3/Pro/V2, please flash your mainboard's firmware before using,the firmware can be downloaded from Creality official website.