... airport passenger position management security access control attendance VT-3004 UHF BAP tag Battery assist passive tagairport ... access control and attendance.Parameter SpecificationModelModel (Order Code)VT-3004battery assisted passive tagperformance indexProtocolEPC global Class1,Gen2 ISO ... capability4: Communication: LAN,RS232,RS485,Wiegand26/34; VT-3004 tag overcome the weakness of short reading, ...