This is a temperature sensing Thermocouple for Creatbot D series 3d printers like DX, DE.
Loose contacts with the temp sensor can cause inaccurate readings, which compromises the accuracy of your plastic flow.
With a new temp sensor, you ensure optimal temperature control for your Creatbot DX & DE machines.
This means more accurate & stronger 3d prints without under-extrusion & layer delamination.