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Blue Shell-EMID(TK4100/EM4100)125KHz LF proximity RFID Key Fob tag

D-Think_8002ID-Blue Shell



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RFID keychain tag is an ideal low-cost solution to improve efficiency of the management and heighten the security. And it can be customized in the different colors and serial number printing. These low cost RFID key tags could be customized in the common 125 kHz or 13.56 MHz, and these RFID key tags are compliant with various chips for wider use. And each RFID key chain is produced with a unique ID. Therefore, it is an ideal solution for automated check-in / check-out procedures in hotels, since it provides an efficient and reliable means for identification.  Besides, custom logo printing and serial number printing is also available. 


  • Small size, sturdiness and durability, do not fade
  • Waterproof, shockproof, anti-corrosion
  • Available in different colors
  • Available in different designs
  • Available in LF 125Khz and HF 13.56MHz
  • Available in different chips (TK4100, ATA5567, MIFARE 1 S50, MIFARE 1 S70, Ultralight, Desfire, I-CODE SLI)
  • Custom color and inkjet marking for ID number or logo available on request


  • Type: Contactless R/O or R/W
  • Operating Frequency: LF(125KHz) or HF (13.56MHz)
  • IC Available at 125KHz: EM4102, EM4100, EM4001, TK4100, GK4100
  • IC Available at 13.56MHz:I-CODE (ISO 15693-3), Mifare® Ultralight (ISO 14443A), Mifare®1K (ISO 14443A), Mifare®4K (ISO 14443A), Tag-it™ HF-I (ISO 15693-3), others upon request
  • Size: 40.5*32*5(mm)
  • Reading Distance: 5cm ~ 12cm, other longer range depend on Reader Design
  • Material: ABS
  • Operating Temperature: -40º C to +55º C
  • Storage Temperature: -40º C to +75º C

Competitive Advantage

  • Waterproof IP 68
  • 100, 000 times reading & writing
  • Could be customized, including Color, Printing, Numbering and so on
  • OEM available
  • Durable & cost effective



D-Think inc. is able to design and develop RFID tags and RFID readers in different sizes and different shapes for your different requirement. For more info about RFID products please kindly visit our website or email us at, we will contact you as soon as possible.

1. Specifications are subject to change, please pay attention to our latest one.
2. According to the relevant provisions of the logistics company, more than 1.5KG not send surface mail or registered mail, can only choose courier.
3.D-Think inc. reserve the right to the final interpretation of the above terms.

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Tuesday 16 July, 2013

This product was added to our catalog on Tuesday 16 July, 2013.

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