BC2002-AT88 Advanced Positioning System is designed for the airport, border defense, customs, highway and other special places. As these occasions' environment has strong wind, big temperature difference between day, night and the seasons, lightning electromagnetic interference and the high probability of interference, it is difficult to maintain after the installation of the products that need round-the-clock work. So we give priority to the design of the product's reliability, stability, sealed, waterproof, Anti-acid rain, high temperature endurance, aging, corrosion resistance, wind resistance, to ensure that after the products are installed, they can be long-term, stable, free-maintenance.