125Khz TK4100 contactless check point for guard tour system Diameter 8.5CM Thickness :1CM ... Weight : 20g Product name:125Khz TK4100 contactless check point for guard tour systemMaterial:PVC/ABS/PET/PSSize: Diameter 8 ... Times:>100 000Color Options:Applications:enterprises, bank, traffic, insurance, super marketing, parking, school, library management access control, etcPackage DetailsPlastic bag: ...