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GPS Tracker,which set multiple functions of accurately positioning,security, monitoring surveillance, emergency alarms and tracking in its entirety,special for vehicle.
The product fully supports the functions of SMS / GPRS / Internet data transmission,to make it more widely used in large-scale monitoring, emergency scheduling, location-based services, traffic safety and many other areas of management.

Detailed description:
It is based on GSM/GPRS（850/900/1800/1900MHZ）wireless telecommunication internet and GPS satillite global position system,track by several ways.provide monitor software and global map.real-time track through the monitor software in your pc;track through your PDA cell phone and googleearth.

Following features added on the basis of 103-A/B:

-Dual simcard

-Fuel sensor [ Option ]

-Lock and unlock door[option]

Basic functions:

• GPS + Location based service(LBS)
• Real time tracking via SMS or GPRS (TCP/UDP)
• Track on demand by calling or sms comamnd
• Show location directly on mobile phone with HTTP google map link
• Track by time and distance interval
• Five authorized phone number to protect tracker information and assets
• Voice Surveillance
• Easy switch for track or Monitor
• Low battery alarm
• Power off alarm
• SOS button for emergency
• Geo fencing control
• Overspeed Alarm
• Engine -cut and restore alarm by SMS GPRS
• Door, windows alarm get by SMS
• Movement alert sensor
• Free GPRS tracking software send you in CD package
• With direction and heading value
• Optional shock/impact sensor
• Abosolute street function
• Smart track upon time and distance interval
• Automatic update positions of vehicle turns
• GPS drift suppression
• Data logging
• Forward third parties message to authorized phone number
• charge inquiry
• Multi area management
• Accident alarm(Option)
• ACC working alarm
• Configure parameters by USB
• Less GPRS traffic
• GPS blind spot alarm
• Dual simcard
• Fuel sensor(option)
• Lock and unlock(option)
• Sleep mode fuction