Sensor for taut wire fences

An intrusion detection fence of a taut wires type that comprises—

• a couple of anchoring poles that are positioned at a distance one from another;
• and—
• wires that are stretched taut between said two anchoring poles;
• and—
• at least one sensors' pole that is located between said anchoring poles;
• and—
• at least one sensor that is installed on said sensors' pole and that is linked with at least one of said taut wires for sensing phenomena that accompanies an attempted intrusion through said fence;
• and—
• wherein said intrusion detection fence is characterized by that—
• said sensor is a tri-axes accelerometer that is installed on said sensors' pole wherein it is inclined relative to said taut wire unto which it is connected;
• and—
• said sensor is connected to said taut wire via a movement converting means such that from an instance of biasing said taut wire as happens when an intrusion attempt through it occurs, converts a movement of said taut wire unto a rotational movement of said sensor that is amenable to be sensed in all of its three axes.