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The invisible fence

While the methods of keeping criminals off one’s property have changed since medieval days (moats, flaming arrows and boiling water, to mention a few), the fundamental principles of perimeter security remain the same: to deter, detect, delay and deny. And with the prevalence of illegal weapons, coupled with criminals’ scant regard for life in far too many headlining instances, consumer demand for early warning detection systems is at an all-time high.

That is according to Ingo Mutinelli, national sales manager for Elvey Security Technologies. Among these is the AX-350/650TF series by Optex, designed to deliver exceptional performance in extremely sensitive conditions. Dual photo beam sensors create an invisible barrier and offer four site-selectable frequencies that create a wall of coverage when stacked one on top of another.

Says Mutinelli: “Many people believe an alarm system connected to a control room for armed response purposes is the ultimate security solution. They are forgetting or unaware of the fact that perimeter protection is the first line of defence and that the ultimate security solution is therefore a layered one comprising three levels of protection, namely the perimeter or boundary, the middle area and then the building.”

Noting a spike in his company’s year-on-year sales figures for early warning detection and perimeter protection systems, Mutinelli says this demand is being met by advanced, super reliable products from industry leaders such as Optex, which has deployed top-end security systems across the globe for more than 30 years.

Not too long ago, an invisible boundary wall existed only in storybooks, but today it is a reality, says Mutinelli of Optex’s AX-350/650TF series. Used with great effect to prevent criminals from gaining access to private premises, its photo beam sensors create an invisible fence and will trigger an alarm in the event of a breach, thereby ensuring the heightened protection of people, products and vehicles.

Another feature of the series is its dual beam, long-range sensors with external ranges of up to 200 m and internal ranges of up to 400 m. The beams can be set to differentiate between a falling leaf and a person climbing over a wall. The AX-350/650TF series’ alignment technology (I.A.S.C.) allows for the transmitter to be programmed with alignment data. It is also responsible for the receiver’s easy ‘single-man’ aiming capability, which reduces installers’ setup and alignment times.

To further increase security, beam height and direction can be concealed inside beam towers. The IP54-rated unit also boasts an improved electro-magnetic interface surge absorber and high-surge resistive relay which protects the beams from lightning and electrical surges.

Through the use of D.Q circuitry, the system is able to send trouble signals when the beam strength drops below an acceptable level. The anti-frost structure helps prevent fog and heavy condensation from blocking the beams, which tend to create false alarms.

For more information contact Elvey Security Technologies, +27 (0)11 401 6700,  tasha.smith@elvey.co.za,  www.elvey.co.za

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