GPS Tracking Device is used to collect radio signals from the network of satellites orbiting the earth and use those signals to determine abundant data related to location and position, recording the detailed data directly to a GPS receiver or transmitting the information to a off-site computer server where that locational data can be accessed by a computer, mobile device or tablet with internet capabilities. HJDTEK supplies a full range of GPS tracking device that such as personal GPS tracker, asset GPS tracker, vehicle GPS tracker and other portable tracking device, which will supply you with high quality solution for fleet management, personal security and Management of all kinds of information.