Positional accuracy (CEP50) autonomous positional error less than 2.5 meters GPS chip: u-blox MAX-M8 Satellite-based augmentation systems: WAAS, EGNOS, MSAS, GAGAN High sensitivity navigation engine (PVT) tracks as low as –166 dBm Modbus slave device; RS-485 half-duplex serial communications Internal GPS updates once every second Environmental rating: IP69K per DIN 40050