10 pcs Small DS1990A-F5 Read-Only for Smart TM IB ibutton I-Button for Touch Electronic for Key Tag Reader for

The product for smart is fully for DS1990A-F5.304 stainless steel package, durable, never rust and corrosion. 10 pcs Small DS1990A-F5 Read-Only for Smart TM IB ibutton I-Button for Touch Electronic for Key Tag Reader for Description: Features: brand new and high quality. The product for smart is fully for DS1990A-F5.304 stainless steel package, durable, never rust and corrosion. High temperature resistant resin material, stronge sealing performance, anti-aging, resistance to heat. Internal support spring piece, stainless steel manufacturing, anti-variant, smooth, flat. Internal core with high-quality gold-plated panels and technology to produce highly integrated. TM also known as for touch memory, electronic for key. Widely used in security patrol, sauna cabinet door locks, electronic locks, access control intercom systems. It doesn'for t need for extra power, just need the collector supply power, can be read in less than 5ms. DS1990A-F5 cards with a new 2401 chip package, the only 64-