EAS AM detection systems are often used in retail anti-theft applications. Although this technology is effective in anti-theft, it also has some limitations, mainly including the following:
Highly affected by environmental factors:
The performance of the EAS AM detection system may be affected by environmental factors, such as electromagnetic interference, interference from metal objects, etc. Metal objects may affect the system's signal, resulting in false alarms or missed alarms.
Unable to distinguish between item types:
The AM system itself cannot distinguish the type of items passing through the detection area, and can only detect whether there is a tag or whether the tag is activated. This means that the system may generate false alarms for legally purchased goods or when the tag fails.
False alarms and missed alarms of tags:
Tags may fail to be successfully detected for various reasons, such as damaged tags, too far away, or blocked by interfering objects. In addition, some cheaper or non-standard tags may not be recognized within the system's detection range, resulting in missed alarms.
High installation and maintenance costs:
Installing an EAS AM system requires professional equipment and personnel, and also requires regular maintenance and calibration, especially in a high-frequency retail environment. Equipment maintenance and replacement may increase costs.
Limited detection range: The effective detection range of the EAS AM system is usually limited, especially in a larger space. If the effective working range is exceeded, the system may not be able to correctly identify the item, resulting in missed reports.
Tag damage or demagnetization problem: If the AM tag is damaged or demagnetized, the system will not be able to properly identify the item, which may result in undetected theft.
Poor adaptability: The AM system may not work effectively for goods made of special materials. For example, some foods or goods made of high-density materials may not effectively trigger the system's alarm.
Cannot prevent internal theft: The EAS AM detection system is mainly used to prevent external theft, and the system's prevention effect is relatively weak for theft by employees or internal personnel.
Poor compatibility with other systems: If the store or venue uses other types of anti-theft systems, the AM system may be incompatible or interfere, thereby affecting the overall anti-theft effect.
Overall, the EAS AM detection system has certain limitations in anti-theft, and is combined with other security measures to reduce the risk of theft.