Criteria
    GlobalTrack
    Other vendor
    Battery Operation Supported

    24 hours battery life,external power off/power low notificationUuto charge circuit

    		no
    Wide Range Power Supplysingle power supply 12-30V for any vehicle installation , build in voltage regulator, reverse protection , low power consmption ,support dedicated 5V power supply for external devicemost 12V
    Analog Input /output Supportyes
    12Bit (4096 step) precision analog measurement, can connect to most of the sensor in the world
    12Bit (4096 step) analog output , to contol motor , volve ,etc , remote controlable    		no
    SMS/GPRS Auto switch yesno
    Fuel Level Readingsupport remote fuel level reading acessories , max four fuel tanksno
    Temperature Measurementyes , can support 4 sensors in one vehcile unit, cable length cab be extended up to 20M 0.5C precision , -50C-130C rnage
    		no
    Wireless Network SupportSupport dual band or quad band (North and South American support) GPRS/GSM , can be depolyed in worldwide
    Support GSM Data , GSM SMS , works every where in the word
    can work only using GSM SMS or GSM Data for those operator no support GPRS
    GT-CDMA Support CDMA2000 1X RTT Network     		dual band GSM
    Radio Modem SharingShare internal modem with other device,support 4 port RS232 to used with other device , for example bus and taxi billing metersno
    Barcode Scanner SupportYes , widely used in logisticsno
    Multitasking OSSupport GPS data and other device data processing at the same time
    		no
    Flash Memory>=4Mno
    Wireless Video Function SupportSupport LiveVideo Image transferr using wireless by GSM/GPRS/CDMA
    Build in JPEG Compression Chip to minimize image traffic    		no
    Radio Blank Spot Detection
    Data Resend Function    		Keep at least 30 days un-send data , when vehicle goes into radio coverage will resend immediatelyno
    Protocols support
    		both TCP and UDP , Layer 5 upon TCP to support resend without data loss
    		UDP
    Server Linkscan connect three server connections at the same time for fault tolerance and e-maintanceOne server links
    Data Sending ratesSupport reliable TCP protocol , add resend protocol upon TCP, data sending rates 100%support reconnect and resendingUn-reliable UDP protocol below 50% data sending rates in moving wireless
    Mobile TerminalSupport PDA as mobile terminal two way short message exchangeno
    WebMap Supportyesno
    Remote configure (e-maintance)All parameters can be remote configure, some model support firmware remote upgradeno
    CDMA2000 1XRTT 800MHZsupportGT-CDMA2000 3G systemsupportgsm/gprs
    External Relay Pack support 8 channels relay pack , max 20A current support , to trigger external high power deviceno
    Voice CommunicationTwo way voice supportno
    Low communication cost designSupport sending by vehicle unit traveling distance to minimize communication costno
    Support Analog MeasurementSupport at least 4 Channel ADC interfaceTo measure temperature ,battery capacity, liquid pressure ,and other special measure (in G300)no
    GSM/GPRS Dual System Supportdual mode support in one unitno
    Geo Fencing Supportuser can define multiple geographic polygons and event to take action when vehicle goes in or out of the polygonsno
    Remote Download DataRemote download GPS Data using GPRS or GSM Data Callno
    GPS Precise Time SupportAuto adjust internal clock from using GPS satellite atom clock , to guarantee data synchronizeno
    Wirelss Panic Button Padsupport wireless panic buttom padno
    GPRS on demand support remote setting GPRS to activate when neededno
    SMS Remote Conrolsupport user send sms command to remote control GT-GPRSno
    Vibration Sensor for securityyes , send alarm signal when car being vibrate no
    Certificationyes,EUROPE CE and U.S FCC certification , high quality guaranteeno
    Internal Relaysupport two internal relays to immobilization vehicleno
    RFID Driver ID supportoffer driver ID support with newest RFID technologyno
    Google Earth SupportedYesno
CYBERGRAPHY TECHNOLOGY INC.