... software EX300. The software uses the RS232 serial port to communicate data via SMS, ( or by RS232-USB adaptor cable if uses the ... rescue report, different maps switching, also allow the onscreen control by control buttons, like cut oil, shut down engine3. SYSTEM PACKAGE ... module ( MC55, MC56, ), Dual band Siemens MC39 module.- GPS report by unit ID, speed, locaiton, direction, time, SOS , etc- All in ...