There are no retail stores where you will not find the hard tags which are for the purpose of electronic article surveillance. This is a technical term which is used for the anti-theft technological devices which are commonly used in retail stores and libraries too. The tags which are used can be of various types and are for various purposes too. These tags are only deactivated only when the article is purchased by the customers. Otherwise any activated tags if not found in proper place is considered as stolen one. The person who has taken it at any place will get detected at the exit point when passing through the checkpoint security.
Types of the EAS system
Here are some of the very common electronic article security devices which are commonly in use:
- Electro-magnetic tags
They are also known as the EM tags which are being attached with the article with two metal strips. They are activated by demagnetizing the strips. Only on magnetizing it can be deactivated. And when attempted to be stolen, an alarm is sounded which prevent the process of the theft. They are mainly with items which are given on rentals like the books or CDs or DVDs.
- Acousto- Magnetic Tags
These are very similar like the EM tags. These are abbreviated as the AM tags which are with the plastic strips instead of metal. These strips are disposable or re-useable.
Mostly the retail stores prefer this one as they are much less gets you the false alarms.
RF hard tags are the radio frequency Identification tags which makes use of the radio frequency and is used for the purpose of the anti-theft only. These tags are available in plastics, re-useable tags, and disposable label tags too. The tag and the pedestal can be few feet away which can be read by the frequency received.
The difference between the three systems
So these are the basic three systems which are commonly sued. But as a beginner you may not get which one is best. So let’s have a review on this topic and get to know which one is better:
EM and Am are triggered only when the theft occurs. They have no memory to contain the item number which is possible in the RF tags.
On other hand the EM has many a time false alarms too which is considerable low in the AM; hence it is much preferred by the stores in many cases. EM is mainly chosen by libraries or CD rental shops which are quite helpful to prevent the anti-theft.
The RF are the most popular one for the retail stores as they have lowest installation cost, affordable and are perfect for the purpose. But they may not work so well on liquids or metals. For other it works perfectly well which makes it the most demanding one. To install them you can contact with any reliable RF hard tag dealers in Kolkata who will do everything for you. Check out online for such companies.