Critical Infrastructures are routinely targeted by attackers and persons who wilfully trespass, posing significant risks for assets that are essential to societal functions. As so, the demand for multi- layered perimeter protection has increased with the growing perimeter threats. The existing remote access surveillance solutions such as radar and cameras are sensitive to weather conditions (e.g., rain, dust, fog, and snow) and obstacles that lead to significant performance degradation due to the high false alert rate in these cases. The ORA remote RF sensing platform enables the implementation of an affordable, scalable, and easy-to-manage protection layer that can overcome the above challenges.