Soaying 10Pcs Rw1990 Rewritable Rfid Tm Touch Memory Key Ibutton Information Button Electronic Smart Key Card - 500213447

• The outer is made of high quality material and does not rust. Function: waterproof, anti-vibration, anti-. Simple and convenient operation, Small size, buckle, portable. Application scope: access control system. biometric tracking and identification system. warehousing logistics system. security patrol system. hotel, community card system. identification system security patrol, sauna bath door lock, electronic door lock, access control intercom, bank, Communication, railway transportation, transportation and many other fields. electronic wallets, smart water and electricity meter reading systems and many other industries.