Underground Passive Magnetic Detection System (UPMDS)


The Underground Passive Magnetic Detection System (UPMDS) is a powerful electronic system specifically designed for total perimeter protection of critical infrastructure facilities and high-risk facilities.


UPMDS features concealed magnetic sensor cable to create a "virtual fence", 3 to 8 meters high and 3 to 8 meters deep, depending on client requirements. This virtual fence will detect an intruder carrying metal objects such as weapons or burglary tools.  


The UPMDS based on the principle of Magnetic Anomaly Detection (MAD) and can be used in all types of geography and climates including, concrete roads and runways, between trees, under vegetation, underwater, ice, snow and on the top of a wall. Global and local disturbances are filtered out by the advanced adaptive algorithms of the field controller.


The system is invisible to intruders because it is buried.   Because the system is passive, it generates no electromagnetic radiation. Therefore it is impossible for intruders to ascertain the location of the system or detect its presence, even by using the most sophisticated detection and measuring equipment.   Because the UPMDS is buried it is also protected from the effects of deterioration due to the climate or atmospheric interference and requires a minimum of maintenance.


The protected perimeter is divided into zones, each of which can be as short as 10 m’ or as long as 600m'.             


  • Suitable for the discreet perimeter protection of commercial, domestic, industrial, military or other high-risk areas.
  • May be installed in under any surface, even in very harsh conditions
  • Unaffected by animals, vegetation or precipitation
  • Maintenance costs are low and the system has high durability and lifespan. For example, some systems installed 30 years ago continue to function (some systems
  • Low false alarm rate
  • All weather operation (365 days per year)
  • Simple to install and easy to integrate with any command and control system
  • Computerized test unit allows for a simple diagnosis