Rigid electro-welded fences and grilled fences can be effectively and easily protected by a system which is very robust to false alarms. Special, totally passive movement sensors (SV Lite sensors), mounted on the fence , detect intruders climbing over or trying to dismantle fence modules. This intrusion detection is transmitted via plastic fiber to the analyser, which triggers an alarm.
Inside and outside the fence, all the area remains fully available and walkable: people and vehicles can go along the fence also when the perimeter protection system is active. Anti-intrusion detection can be kept active also H24.