1. SMS and GPRS TCP/UDP Communication

2. Track by Time Interval and call roll

3. Cut off the car engine when in urgency

4. Group telephone chrs

5. SMS of mobile and gprs

6. Mileage function

7. Remotely monitor by authorization

8. High low-level output voltage measuring

9. Record data logging function

10.Remotely lock vehicle

11. SOS alarm

12. Cut power alarm

13. High and low voltage alarm

14. Overspeed alarm

15. Parking alarm

16. Illegal open door and illegal start engine alarm

17. Internal flash memory 16MB : When the M528 is disconnected to the system (for example, the GPRS signal is weak), the position data will be storing in the flash, and then it will upload again after it reconnect to the system (the GPRS signal is ok).