Septentrio AsteRx-i3 S Pro+

AsteRx-i3 S Pro+ delivers reliable centimeter level positioning combined with 3D orientation in demanding environments. Its sensor fusion provides orientation and positional dead-reckoning, making it ideal for systems that require continuous positioning even during short GNSS outages. AsteRx-i3 S Pro+ allows full flexibility of usage providing raw data and enabling tethered IMU installation precisely at the motion point-of-interest.






  • Reliable and accurate IMU-enhanced RTK GNSS positioning down to the centimeter level
  • Full access to raw GNSS and IMU data
  • Tethered IMU installation with pitch and roll data
  • Heading available immediately from initialization with dual antenna configuration
  • Lightweight, low power and compact
  • AIM+ unique interference monitoring and mitigation system + advanced other GNSS+ algorithms
  • Fast and easy integration with the intuitive Web Interface, automatic lever arm optimization and support Knowledge Base