Orignal R&D & manufacturer for eas board Anti-metal interference Wide distance DSP board Max detection range is ... electric systemThe system possess perdure durable,and anti-destroy.Detecting range: 1.9m soft label 3.0m hard tagFocus frequency: 8.2MHz ... /AM System. EAS RF/AM hard tag, detachers, RF soft label, deactivator, EM System, EM Strip, EM Activator/Deactivator and EM ...