This seems to have pretty much the same functionality as the TK102 but with the addition of an external power/fuel cut facility. For some reason it has the latitude and longitude reversed when compared to all the other models I’ve seen so far.
It’s a dedicated vehicle mounted tracker so connects to a 12v power supply and also has an “ACC” input that can be hooked up to the ignition or other power source and the unit will send an alert if it sees 12v on that input, such as when the ignition is powered on, when this function is armed.
The stockade/geo-fence command looks like this…
stockade123456 114.124845E,22.56718 5N;114.777888E,22.55 5666N
It also uses an unusual auto tracking command that looks like…
T030s***n123456