Main Features:
    SiRF III and Quad-band(850/900/1800/1900MHz)
    Track by SMS/GPRS (Meiligao Protocol)
    Track on Demand
    Track by Time Interval
    Track on Mobile Phone
    Internal 4MB Memory for Logging
    Inbuilt Motion Sensor
    Internal Backup Battery
    SOS Alarm
    Geo-fence Alarm
    GPS Blind Area Alarm
    Low Battery Alarm
    Speeding Alarm
    External Power Cut Alarm
    Engine Cut (Engine immobilization)
    5 Digital Inputs
    5 Outputs.
    2 Analog Input Detection
    Size and Weight:
    VT310 Dimension: 104 x 62 x 24mm
    VT310 Net Weight: 190g
    Box Size: 211x162x70mm
    Gross Weight: 0.9kg per box
    Carton Size:
    428X330X365mm
    (20 sets)
    825X428X365mm
    (50 sets)
    Standard Packing:
    VT310 Main Unit with Battery
    GPS Antenna
    GSM Antenna
    I/O Cable
    usb Data Cable
    CD

OEM/ODM,Customized Logos/Designs are Welcome