MBS – 405 Buried Sensor

The MBS-405 Passive Magnetic Concealed Sensor Cable / Buried Intrusion Detection Security System is:

  • Immune to weather, running/standing water and wild life false alarms
  • Detects only moving metal objects over the system
  • Fully Passive, can’t be detected with any reciver compared to Leaky cable/E-field/Electromagnetic technology
  • Can operate under any type of surface.


The MBS-405 is a buried sensor cable intrusion detection sensor, totally concealed and operates under any type of surface such as: asphalt, concrete road, under vegetation and trees, under water and ice.


The MBS-405 buried sensor cable intrusion detection sensor is fully compatible and integrated with video surveillance systems.


The MBS 405 Buried sensor cable detection System is based on the magnetic anomaly detection principle. The system detects an intruder carrying any Ferro-magnetic object as small as a pocket knife or carrying weapon, or tools.


The MBS 405 Buried Cable Detection System creates invisible intrusion detection zone and will detect any attempt to cross or tunneling under the sensor line within 5ft (1.5m) all around the sensor cable.

MBS-405 Sensor Cable:

An elongated loop of sensor cable consisting of a continuous length of cable, buried underground.
Movement of ferromagnetic materials above or beneath the sensor changes the currents flow of earth flux and detected by the sensor cable.
The sensor detects the low level intrusion signals for amplification and processing by an Amplifier.


  • Sensor cable length: Up to 656 ft’ (200m)
  • Sensor width:  Between 4.429 ft (1.35m)
  • Installation depth: Minimum 1.312 ft (0.40 m)


The cable contains 1 single core, overall braid shielded and jacketed with an FR, PVC compound. This cable has stranded conductors and can be applied for use in portable, indoor and outdoor applications.


Basic Wire:
Conductor:  Stranded tinned copper, 7×0.16 mm, 26 AWG.


Overall Jacket:
Material:  FR PVC compound.
Color:  Blue, UV resistant.
Thickness:  0.4 mm nom.
OD:  3.1 mm nominal.

Electrical Properties:
DC Resistance:  93.2 Ohm/Km max. @ 20C.
Velocity of Propagation:  45% nominal

General Properties:
Temperature Range: -58°F to + 221°F (-50°C to +105°C).
Flame Test:  IEC 60332.1.


Local Processing Unit (Lpu)

A self-contained direct buried, waterproof (IP67) and corrosion resistant capsule specifically designed to detect, amplify, filter and process low level signal received from the sensor cable.


Operating voltage:  12-35 V DC
Current consumption:  6-10mA
Outputs: NC/NO drycontact relays OR RS485 to RBtec Intrudalert software.