Features 1、Main Purpose: The 3D printer filament detection module is applicable to the jumping and pause detection of 3D printer filament. 2、Level Signal: When there is filament, the detection port signal should be high level, when there is no material, the signal will become low level. 3、With Indicator: When there is filament, the green light on the module is always on, and the green light is off when the filament are used up. 4、Easy Operation: The mainboard executes the suspend command and waits for the personnel to replace the material before continuing to print. 5、Copper Sleeve: Add copper sleeve at the inlet and outlet, which is wear resistant and durable, effectively extending the service life. Specification Item Type: 3D Printer Break Detection Switch Product Material: ABS Function: When the filament is exhausted, the mainboard will execute the suspend command to extend the service life of the product Features: The wear resistant copper sleeve is added at the inlet and outlet, which can effectively prolong the service life of the product Main Board Use: The green light of the module is always on when there is filament, and the green light is off when the filament is used up Package List 1 x Detection Module