1、AUTOMATIC FEEDING: Filament break detection module automatic feeding, can be inserted into the material wire, detection of automatic heating into the material. 2、RETURN FUNCTION: Material break module with return function, after pressing the return button, it does not need the computer to operate the page to return the material. 3、LIGHT STATUS DISPLAY: Material break module has the function of material break detection, light status display, different lights show the status of the material wire. 4、PLEASE NOTE: When the feeding temperature reaches the set temperature, the material may not be fed immediately and it is necessary to wait for the temperature to stabilize before starting to feed. 5、PCB MATERIAL: Filament runout detect sensor is made of PCB material, which is not deformed for a long time, thus ensuring long term stability.