Key Fob Transponder KF11 PVC

Key Fob Transponder KF11 PVC

B-Id's low-cost, waterdrop-shaped key fob model KF11 is an interesting alternative to conventional RFID key fobs. Unlike the KF10, the housing of the new model is not made of the fibreglass FR4, but of PVC.

This change makes it cheaper than the KF10, furthermore the KF11 is also available in five colours (white, red, yellow, blue, and grey) for small order quantities. The flat and simple design of the new key ring makes it elegant and easy to transport.

Yiwen Jin

Since its establishment in 2002, B-Id has become one of the leading developers, manufacturers and suppliers of RFID hardware for the European and North American markets.

Yiwen Jin
Managing Director
Hannoversch Münden, Germany

Product Category


Application Fields

Sales Region

Key Figures

  • Size: 30 x 45 x 2 millimeters
  • Material: PVC
  • Operating temperature: -20°C to +70°C
  • Frequency: 125 kHz (LF), 13.56 MHz (HF), 868 MHz (UHF), and combinations of LF and HF
  • Standard color: white, yellow, grey, red, green
  • Wiegand 26 Format
  • Clock and Data Format
  • Printing: pad printing and screen printing
  • Laser engraving possible


  • Access Control
  • Time Logging

B-Id is a leading developer, manufacturer, and supplier of RFID hardware, fingerprint and display cards with a focus on the European market.

The portfolio includes but is not limited to:

  • Key fobs in LF, HF, UHF & frequency combinations
  • Industrial transponder OEM/ODM
  • RFID transponders LF, HF, UHF & frequency combinations: tags, tokens, on-metal tags
  • High-temperature UHF labels and inlays with a temperature resistance of up to 250 degrees Celsius
  • Antenna/inlay design for customer-specific projects
  • Fingerprint ISO cards with and without battery, DOT Matrix Display ISO cards
Product News

New High-End Payment Cards From B-Id

B-Id converts payment cards into multi-purpose high-end tools in ISO format Fingerprint sensors in combination with NFC and BLE offer security in block chain applications. The progressive adaptation of online payment methods is constantly placing higher demands on fast, secure and flexible payment methods. Yiwen Jin, managing director of B-Id, reports: "Blockchain applications are increasingly being used in the private sector as well. Crypto currencies offer new opportunities and possibilities for payment, but at the same time present new challenges for manufacturers and service providers. Now there is a solution for this that is easy to use and still offers maximum security".

Solution News

If the standard is simply not enough...

..., B-Id develops tailor-made and high-performance transponders for the Industrial IoT.  RFID transponders are as available as sand by the sea. In order to select the right transponder for a requirement, many years of experience in the areas of chip selection, antenna tuning, and housing development are the fundamental prerequisites.

Solution News

RFID and Biometrics - Industry 4.0 Boosts New Applications

B-Id develops innovative transponder solutions for security relevant processes! The success story of RFID technology in industrial processes is continuously being updated. The developer and manufacturer of transponder solutions - B-Id - continuously contributes with innovative identification solutions to make RFID usable in almost all industrial processes.

Fingerprint Card
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