Material: ABS

Diameter: 20mm,22mm,28mm,30mm

Reading distance: 50mm based on GK4001 chip, with EM9917 reader Operating temperature: -40 to 70 degree Celsius Storage temperature: -40 to 80 degree Celsius Water resistance: yes CHIPS: GK4001,TK4100,EM4100,EM4102,TEMIC,MF1S50,I-CODE2,TI

RFID tag- TOKEN