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Praetorian Fiber Optic Sensing for Perimeter Security and Threat Detection

Praetorian Fiber Optic Sensing for Perimeter Security and Threat Detection

The Praetorian Fiber Optic Sensing System can be installed along a fence or perimeter and can detect, identify and report any movements. This system has limitless applications and can be installed on anything from explosive storage areas to farms and ranches. The fast processing speed and pulse rate allow the Fiber Optic System to detect minute interferences that may otherwise go unnoticed. Some examples of detectable activates include intruder movement along a perimeter, intruders cutting or climbing a fence, vehicle movement along a perimeter and digging, excavating or trenching. The Fiber Optic Sensing system is crucial for keeping valuable assets secure and protected.


  • Army barracks
  • Airports
  • Prisons
  • Explosive storage areas
  • Country borders
  • Hazardous areas
  • Unmanned sites

Product: FOS-2

Principle of Operation

Using a combination of Rayleigh backscatter and time of flight, the Praetorian determines the presence, location, intensity, and frequency of vibrations along an optical fiber in real-time.

Rayleigh backscatter responds to vibrations applied to the fiber. HAWKÍS signal analysis software allows the Praetorian to quickly determine the most likely origin of the vibration and report any error signals to security personnel without notifying an intruder of their detection.

The location of the vibration is determined using a "Time of Flight" calculation. When a laser pulse is emitted from the system a fast clock is started. As backscattered light is returned to the detector, it is recorded for further analysis and time stamped. Due to the speed of light being constant within a fiber, this timestamp corresponds to a distance on the fiber. For more on fiber optic sensing perimeter security, visit!

  • No time splicing, allowing zero chance for an intruder to go unnoticed
  • Immune to the effects of a broken or cut fiber
  • Fiber optic sensing detects the exact location of intruder
  • Self-diagnostics monitor the unitÍs condition and maintain optimum performance
  • No maintenance or calibration require after commissioning
  • Monitor up at 10km (6.2mi) at the same time.
  • 24/7 real-time monitoring
  • Perimeter/Border
4RU 19" Rack Enclosure (190x600x490mm)

Sensing Element: Fiber Optic Sensing Cable
Number of Channels: 1 or 2
Interrogator Operating Temp: 0-40°C (32-104°F)
Unit Operating Humidity (max): 10-85% @ 40°C Non-Condensing
Power Supply: 110-240VAC (50-60Hz), 24VDC

Contact Us

We will respond to all messages within 24 hours

USA: +1 (888) 429-5538 AU: +61 (0)3 9873 4750