Advantages Much better immunity to shielding by metal than RF and AM. Even 4 times of aluminum foil wrapped around the product will not effect the detection.• Effective label size. The smallest in the industry. When using clear label the width of the metal parts is maximum 1.5 mm.• Label camouflaged easily on the product or in the product by using drop-in or push-in label.• Label can be applied on both curve surface and narrow products like eyeliners and lipsticks.Disadvantages
• Higher System price
• Big antenna width about 64 cm
• Small aisle width
EM is the only technology with the potential possibility to protect all items in retails but not only a limited percentage as with the other technologies.