XLD-EM-03 Library EM system Anti-theft function digital technique, with stable ... reliable quality, high sensitivity Product Model: XLD-EM-03 library EM SystemEM-03 Commodity Pickproof and Inspection Instrument has referred ... reporting rateExtremely low application costVery good invisibility Wide ApplicationsBookstore Supermarket, Library, A&V Store, Drugstore Supermarket, Cosmetics Supermarket, and ...