Detection through buried sensors
SISMA CP 50 uses buried geoseismic sensors that - positioned at approximately 60 cm below the surface - detect the vibrations generated by the passage of people or vehicles.
In a SISMA CP 50 sensor-string, the detectors are wired on two different communication channels alternately, so that the passage of a potential intruder generates a signal simultaneously on both channels. In this way the analysis unit, where the signals converge, has a "double consent" (detection in AND) to effectively discriminate any environmental disturbances from actual intrusions.








