... 125KHz Nominal TK4100,EM4100,EM4102,EM4450 Material: ABS Temperature:-25~+50 degree Keytag RFID CardAccess control card RFID TagH4100,H4120,EM4450,TK4100 ... ,T5557,Hitag1,Hitag2,Proximity card contactless smart cardMaterial: ABSWeight:5.2+/-0.5gStandard color:blue, ... .56MHz NominalNXP Mifare1 S50,Mifare1 S70,Desfire MF31CD41 Keytag RFID Card