The EGM532 has built-in inertial measurement unit, dual GNSS positioning and orientation unit and odometer interface. The system supports GNSS dual systems. EGM532 combines the output system azimuth, which is more suitable for traffic measurement and surveying application. When the satellite signal is occluded, the system will enter the inertial navigation mode. With inertial navigation and odometer information, accurate positioning can be maintained for a certain period of time.