100pcs RW1990 - f5 can Change Code Can Copy Card Rewritable RFID Tag, RW1990 Touch Memory Key Compatible DS1990,

RW1990 - f5 can change code can copy, 64 k memory read/write IButton. Compatible DS1990a Material: su304 0.3 stainless steel Specification: 16.25 mm (diameter) x 5.89 mm (high) Working temperature: - 40 ° C to + 85 ° Waterproof and high temperature and high sensitivity, rugged, never rust, corrosion; resistant to heat; Anti-variant; sealing strong;    for security patrol, sauna door locks,electronic door locks, door intercom, card systems, identification, banking, Communications, rail transportation, transportation, and so many fields    Information ibutton RW1990 memory 64, can be repeated rubbing, write the diy code. mainly used in Russia, Europe and Turkey and west Asia countries   If not leave any messages, we will send by random