10 PCS Rewritable iButton electronic key with RW1990 chip COPY / CLONE IBUTTON
-Rewritable ibutton RW1990A-F5 read-write type of card.
-Read and write DS1990A and TM1990A iButton, RW1990.
-Stainless steel package with SU304#,
-rugged, never rust and corrosion; Resistant to heat;
-Anti-variant; Sealing strong;
-Information ibutton RW1990 memory 64, can be repeated rubbing, write the DIYcode.
-Holder color: Red, yellow, green, blue, black. Customized is also available.
Widely used in security patrol, keys for cabinet locks, electronic rim locks, door intercom, card systems, identification, banking, Communications, rail transportation, transportation, and so on.