The present invention is a taut wire security system that is used with a perimeter
fencing system. The device senses changes in the tension in the taut wire and produces
a tension signal when a disturbance in the tension is created. This signal is transmitted
to a central location when such a tension deviation occurs. The housing of the
device has two compartments, with the electronic components being substantially
sealed from the atmosphere such that moisture, dirt or other elements do not cause
the electronic components to malfunction. The device also includes a tampering
sensor to detect whenever the lid of the device is being removed.