Volumetric sensor buried with a few centimetres collecting the vibrations caused by the passage of a vehicle or a man. A field of detection ultra high frequency is created around two cables, allowing the detection of the intruders.

Currently SORHEA proposes INTREPID MICROTRACK, being able to manage a surveillance zone until 400m. composed of a central processing unit and two pairs of cables ultra high frequency, INTREPID MICROTRACK locates with precision the point of intrusion. That makes it possible to easily discriminate the small animals as well as the bad weather.