GPS Portable Tracker (V690)

Application 

1. Positioning, monitoring, safety protection and SOS fuctionfor children/pupils/middle school students, aged persons/disabledpersons etc 
2. Management, safety protection and SOS fuction forexplorers/business persons/field staff ect. 

Functions: 

1. 4 speed dial alarm buttons and one SOSbutton; 
2. SOS signal can be sent to the control center if the SOSbutton is pressed, so as to indicate the user''s locationprecisely; 
3. The guardian can search the user''s location directlythrough message without the need for monitoringsystem; 
4. Support active and passive monitoring; 
5. Support time setting and continuous/discontinuous trackingfunctions; 
6. Support the electronic fence function, and give alarm ifexceeding the designated range (System support isrequired); 
7. The monitoring center can search the user''s locationthrough message/GPRS (System support is required); 
8. Track recording function, historical track playbackfunction (System support is required).