... board Max detection range is 300cm 8.2mhz eas rf dual system HR202 Supermarket Widest Detection Distance 300CM Orignal R&D & ... signal disposal core technique.Digital super-strong scan electric systemThe system possess perdure durable,and anti-destroy.Detecting range: 1.9m ... RF/AM hard tag, detachers, RF soft label, deactivator, EM System, EM Strip, EM Activator/Deactivator and EM non-Deactivator. If ...