Instructions: GT2000 system concentrates the advantages of traditional GPS and some bran-new characteristic; it not only provides the functions such as satellite navigation, tracking, orientation, antitheft monitor, emergent alarm and remote control for your beloved car, ship and other equipments that need navigation function. Also, it is widely used for military measurement, large-scale construct measurement, accurate real time, motion base orientation, tailor-made timer and other high-tech peculiar field. Specification: Superhigh performance..apply different calculation, the precision of orientation reach at 3-5 meter. Low energy consumption..the working current of full group is only 55mA..rated power 0.2W. Small size..full group size is only 5.5*9.5*1.0cm. Superhigh reliability, spare battery can work for navigation and tracking for 15~20 hours continuously even when power cuts. Multifunctional, it concentrates navigation, tracking, orientation, antitheft, alarm and remote control. Output according with global agreement, the uniform criterion NMEA, it provides sufficient interface for secondary exploitation. Cheapness use, free monthly rent, Point-to-Point monitor, Point-to-troop monitor, troop-to-troop monitor.