I recently purchased a tk102-2 clone (unaware of the existence of clones at the moment - poor to none research).
trying to find out what it is and how to connect it, it turns out it is a Heacent (found from imei starting from 35522).
on wialon i finally managed to detect it at port 20222 and it shows as Xexun tk103-2
using the same settings here, it is found on map - tried only static location though so far.
hope it helps