Hi Seek,
Yes, Vjoycar tracker devices have open communication protocol and integrated with traccar already. you could see the battery level, uploaded location information, alert data, ect on traccar.
more details, you could contact
skype: elsa.vjoycar
mail: elsa@vjoycar.com
Yours,
Elsa
What information we can receive from VJoyCar trackers in traccar? Especially can VJoyCar TK20 Tracker can send information about detach button (alarm), and battery level to traccar?