ANTI-THEFT SYSTEM FOR STORES

An anti-theft system that can be applied in a commercial environment such as a watch store. The products on display in-store are secured by an electronic tag (4) attached to the product. The tag is provided with a chip (16) which emits a first signal which can only be received within a defined perimeter around the chip. An electronic transmitting device (5) is located within this perimeter, which sends the data transmitted within the first signal in the form of a second signal which further contains a value relative to the distance between the tag and the transmitting device. The second signal is managed by one or more computers, preferably of the portable type (6), which are equipped with a digital application configured to analyse the second signal to check for the presence of the tags (4) within a defined security zone (10) around the transmitting device (5).