TM card, also known as touch memory, electronic key
TM1990A-F5 read-only type of card, compatible ds1990a.
Stainless steel package with su304#,
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 manyfields

TM1990A-F5 touch memory button