GlobalSat DG-100 is a GPS data logger that records track data from the received GPS signal. With a GPS logger and antenna built in a miniature construction, DG-100 features an all-in-one, cost-effective GPS logger solution. The DG-100 records time, date, speed, altitude and GPS location at preset intervals. Based on the SiRF star III chipset, DG-100 offers accurate position tracking capabilities.