... there is SD card slot in TK102-2 .The GPRS data can be saved in SD card .Besides , ... , charging status, number of satellites, the length of the GPRS string, GSM ID (includes MCC, MNC, cell ID) ... .4)The commands can be sent to the tracker by GPRS tracking server directly but not only by telephone ... is much easier to modify the software base on TK102-2 personal GPS tracker .Auto Report position. Send the ...