Watch GPS Tracker with Geo-fence Alarm wholesale china

GPS SiRF-Star III chipset fast fixing the position even at a weak signal status
Works worldwide
Support 4-frequency GSM 850/900/1800/1900 MHz
Report GSM operator and cell ID to fix the position when indoor or other NO GPS signal place
Work in phone call, SMS and GPRS three way communications
Navigate you to find your friends and kids whose phone number is saved in your WT-8 in advance
SOS button send out exact location for immediate rescue/action
Via SMS or GPRS
Show alarm icon and beep on host computer's tracking map at real-time
Geo-fence alarm, send out via SMS or GPRS to the tracking map at real-time
Over-speed alarm and compass and data logging function
System setting by SMS or USB or soft keyboard, to connect and use PC software interface
Multi-user management on website (GPRS mode or SMS modem mode)