محلل حماية محيط الجدار محلل الاهتزازات إنجلترا بطول 80 مترا

Examples of such hostile activities might include unaided climbing, rope or ladder aided climbing, drilling, chiselling, or digging under the wall. Historically, protection of perimeter walls has relied on technologies such as active / passive infra-red detection, microwave detection, video motion detection, or systems requiring additional structures such as fences to be attached to the wall to achieve detection.

VibraFon® offers significant advantages over such technologies in that it is virtually covert and causes minimal aesthetic impact, it requires no power distribution along the perimeter wall, it is not limited to straight lines of detection as are infra-red, microwave, and video detection technologies, and it requires no maintenance of sterile areas adjacent to the wall. Furthermore, as it forms an integral part of the perimeter wall structure, VibraFon® provides detection of hostile activity before the intruder manages to breach or climb over the wall. As all security professionals are aware, early detection of hostile activity reduces the probability of loss or damage as a result of the activity.