Principles of using AM anti theft labels When using anti-theft labels, it should be combined with the actual situation of commodities of various departments, and the proportion of labeling does not need to be 100%. The supermarket department can choose products with higher value, higher profit, smaller volume, and excessive loss, such as health care products, milk powder, shampoo, chocolate, etc., and lower value products such as food and beverages. Such high-value commodities can be protected by indirect protection, so as to achieve the purpose of loss prevention.