Application Field: 1. Fleeting management Acquire the location and trace of every vehicle anytime.Send command to drivers of any vehicle. 2. In vehicle security,anti-theft Dial up the defaule telephone number,setted by owner such as police,when the vehicle is in danger such as being robbed. Main Features: 1. Acquire the location of vehicle and tracking vehicle real time. The location of vehicle sent to mobile or control center once per second. 2. Record the trace of vehicle.The trace of vehicle can be recorded to memory stick. 3. Realtime communication with any telephone. 4. Emgergency alert.ASK help when in risk such as in ciolence. 5. Remote control by owner.Authorized owner can control vehicle by send messages to terminal. Following messages is supported:shut down power,close door,close windows,etc 6. Self cheecking.Checking states of terminal,such as GPSannenta connectivity,etc.