Features: 1.1 Identity function 1.2 Recording and storing function for vehicle's driving time, speed and distance 1.3 Over-speed alarming and recording function 1.4 Over-time driving (fatigue driving) alarming and recording function 1.5 Accident doubtful points and record analyzing function 1.6 Replay of vehicle driving track ( ive GPS) 1.7 Management of vehicle information, drivers' files 1.8 Real-time supervision and management of vehicle (additional GPRS/GSM/CDMA module) 2. Description: 2.1 A U disk could set parameters and collect data several dozens or even tens of vehicles, which greatly reduces work loads. 2.2 Buttons are filmbased, with good quality and long life span. Arrangement of button layout is reasonable, checking data could be done by double clicking on buttons. 2.3 MCU adopts 32 digit chip, with faster speed and higher efficiency, users do not have to wait for data input and output. 2.4 High quality ferroelectric memory is adopted for data storage, with low power consumption, rapid reading and unlimited writing. 2.5 Large LCD is adopted for displaying 4 lines of 32 characters. The interface is wholly English, without checking computers for over-speed records, fatigue records and average speed 15min before parking. 2.6 The preset embedded GPS interface, which does not seize RS232 interface without paying any fees, the track of vehicle is clear.