Soft Labels & Tags
Soft Labels and soft tags may be disposable or reusable in combination with various security systems. Labels applied with electromagnetic systems are usually made of soft metals that can be magnetized. When passing through the gates, the signaling device on the activated labels disturbs the radio waves between the antennas and induces an alarm. The advantage of these labels is that it is easy to conceal them and they may be used with metal objects as well. Their disadvantage is that shoplifters may deactivate them by using strong magnets, as they are quite sensitive to magnetic fields. These labels are excellent to protect books from thefts.
Soft Labels used with acoustic-magnetic (AM) systems are made of material that can convert a magnetic force into vibration, which makes them re-magnetized and send a signal to the receiving antenna. As a result, an alarm will be induced. The label is activated through magnetizing, thus it reacts more strongly to the signals of detectors. Although this label is thicker than the one used with EM systems, it is quite popular due to it is affordability and it is also more accurate, resulting in fewer false alarms and more reliable operation even from a greater distance. The disadvantage of such labels is that it does not operate on goods that can be magnetized (iron, steel) and is quite easy to spot due to its thickness. The labels are also quite easy to remove and even a small scratch hinders its operation.
Radio frequency systems (RF) are simple to maintain and cheap to operate. The technology is based on the principle of a resonant circuit, which is the label itself. The Soft label stores external energy which causes the system to vibrate and this is what the antennas detect. These soft labels are flat and can be easily concealed. They are ideal for bookshops or food stores. However, the device is unreliable with metal or metal-covered products and may generate a false alarm if there are similar systems installed close by.
RFID systems are capable of the same operation and use a principle similar to RF or EM systems, but its essential feature is that each signalling device emits a unique signal that does not only alert to attempted theft, but also indicates the product being stolen.
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