Special features: Send commands to GPS trackers via GPRS or SMS. Send GPRS data to IP or DNS. 16 MB flash memory. Fuel/oil level detection. Accuracy: 10mm/1%. Link Google map via SMS. Flexible data transmission interval: time, distance, change of direction. Two-way conversation. GPS antenna cut alarm. Course change alarm. Textual temperature sensor, door sensor, microphone, speaker, buzzer, fuel level sensor. GSM jamming detection alarm.