... built-in authentication used to control and secure access to network services and data.The tag are available with broad range of ... ,44*31 ,52*32MMMinimum QTY500 pcsColorRed, Blue, Orange, Yellow, Gray, Black or customized.Chip AvailableLF: TK4100, EM4100, EM4102, EM4450,Hiatg1, Hitag2 ...