EM (Electromagnetic)Technology is a tried and tested security system.. Valued in many libraries, the system uses security strips on the spine of the book with an integrated security label. Detasec designs, develops and manufactures deactivate/reactivate units which can be used with most EM labels working with any security system. Detasec also offer security solutions in many styles of antennas compatible with existing or new triggers (labels). We offer a wide variety of compact, modern and stylish electromagnetic security products in a variety of format options to suit all types and sizes of libraries.