... 2)Data adds direction, altitude, battery voltage, charging status, number of satellites, the length of the GPRS string, GSM ID ... , the unit will send an alert to the user at once when it been shook or hit heavily .5) ... unit to constantly send you coordinates at specific intervals (minimum 20sec), or send you x number of positions every i.e. ... and monitor any remote targets by SMS or gprs at the same time