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RW1990 read and writable Touch Memory Key ibutton compatible with DS1990A-F5 (pack of 5)

Sale price $7.42 Regular price $8.68

  • RW1990-f5 can change the code, copy,
  • 64K of memory can read and write "IButton" ,
  • Primarily used in some countries Russia, Europe and the United States Turkey and the West, 
  • Material: su304-0.3 Stainless Steel ,
  • Size: 17.35mm (diameter) × 6.00mm (height) ,
  • Operating temperature: -40 ° C to +85 ° ,
  • Waterproof high-temperature, high sensitivity


or security patrol, sauna door locks,electronic door locks,

door intercom, card systems, identification, banking,
Communications, rail transportation, transportation, and so many fields 
Package included:
5pcs rw1990 read and writable ibutton