1)  easy to install;

2)  accurate GPS positioning, dynamic positioning deviation is less than5 m;

3)  support GSM voice and SMS functions, UDP / TCP protocol communications in GPRS mode;

4)  support the GPS data uploading at intervals and location;

5)  support the two way voice communication function;

6)  support Call Barring of group numbers function;

7)  support two way SMS communication viaMobileand PC software;

8)  support the mute function;

9)  support authorized tapping function;

10)  support protection from high or low level voltage function;

11)  support 5 levels of signal detection;

12)  support the data resend from signal dead zone function;

13)  support remotely locking vehicle function;

14)  support watching vehicle function;

15)  support SOS alarm function;

16)  support the power-off alarm function;

17)  support the high-voltage under-voltage alarm and alarm functions;

18)  support over speed alarm function;

19)  support parking alarm function;

20)  support illegal door-open, illegal engine-start alarm function;

21)  support fuel consumption detection;

22)  support fuel changing alarm;

23)  support mileage statistics;

24)  support Geo-fence alarm;

25)  support fatigue driving alarm;

26)  support temperature detection alarm;

27)  support three serial peripherals (such as the car handles, scheduling screen, camera);