... 3.Over speed alarm 4.Cut fuel/circuit 5.Data logger, Remote update DB-8SS gps tracker system is a ... over speed alarm, Cut fuel/circuit, Data logger, Remote update, Support TCP / UDP; GPRS/SMS.2. Technical parameterItem Technical parameterWorking voltage8 - ... -in memory for 10,000 points data loggingAntennaGPS/SMS connection, - 26dB, Cable length 5 metersGSM/SMS connection, - 3dB , Cable length ...