Perimeter protection systems

A security fencing system formed of modular panels, said modular panels each comprising:

• a frame having:
• first and a second horizontal rails disposed in a fixed spaced relationship;
• and
• at least first and second vertical supports extending between the horizontal rails;
• a plurality of spaced vertical wires between said first and second horizontal rails, each said vertical wire comprising:
• a first end attached to one of the first and second horizontal rails;
• a second end attached to a spring, wherein said spring applies a biasing force between the other of said first and second rails and said vertical wire to tension said vertical wire and allow the vertical wire to move upon a change in tension in the vertical wire;
• a plurality of triggers, each individual trigger being associated with an individual one of said vertical sensor wires and being operable to move from a static position to a tripped position upon movement of said individual one of said vertical sensor wires;
• and
• at least one sensor operably connected to said plurality of triggers, wherein movement of said wires is identified by said sensor;
• wherein said at least one sensor comprises:
• a first hinged strip that is adapted to move in a first direction upon any of said vertical wires being cut;
• and
• a second hinged strip that is adapted to move in a second direction upon any of said vertical wires being pulled.