If i may interject I have had lots of success buying things from 3rd world countries and sketchy sellers. In fact once I had my identity stolen, but the guy ended up increasing my credit score! win/win!?
I assure you there is a load. The small spring, located inside the sensor, presses with the full force of 0.0564924 newton meters! Yes i measured it
Not on mine. The green sensor arms spin freely 360 degrees with the links detached.