TK909 uses the "watch" protocol (port 5093)
I would also recommend to read the text at the top of the "Devices" page. I guess you didn't read it.
Sorry Anton!
Actually I did read it, kind of, but I preferred to identify the HEX rather than try all the possible ports. The https://raw.githubusercontent.com/traccar/traccar/master/tools/test-integration.py helped me out identifying the protocol!
Anyways. Am pretty new to traccar. Just started using it like 2 hours ago and there's lots of information. Kinda hard to hit all the right steps the first time. ;)
Even tho TK909 is listed as h02 on the traccar homepage, after banging my head against the wall repeatedly and finally converting the hex to readable text and doing some research I discovered it's actually using the watch protocol (on the latest version, I presume).
Just wanted to let others know, in case someone will one day run into the same issue.