20pcs/ lot DS1990A F5 iButton I-Button electronic key IB TAG With Black Handle

*The product (smart card) is fully compatible with DS1990A-F5. -0.3 304 # stainless steel package, durable, never rust and corrosion; must source materials, high temperature resistant resin, sealing performance, anti-aging, resistance to heat; internal support spring piece, stainless steel manufacturing, anti-variant; high and low temperature and 100% watertight, vibration and electrical characteristics testing; surface smooth, flat; internal core with high-quality gold-plated panels and COB technology to produce highly integrated;

*TM card is widely used in security patrol, sauna cabinet door locks, electronic locks, access control intercom systems.

*Don't need extra power,just need the collector supply power for


*TM1990A-F5 cards with a new 2401 chip package, the only 64-bit serial number, family code 01, used worldwide without any restrictions.

*Operating Range: 2.8V to 6.0V, -40 ~ 85 degrees.

*16 x 56mm