Product DetailOperation frequency: 125KhzThickness: 1.8mm Dimensions: 85 x 54 x 1.8mmDetecting distance: 2-10CM(Depends on the Reader)Each Card pre-programmed with unique ID which is printed on itCompatible with all RFID reader to gain accessTK4100 completely compatible with EM4100,they can replace each other fully.Water resistant Material:PVC Color: Blank White
