125kHz EM RFID Key Fob

EM RFID key fob is also called RFID key chain or RFID key tag, most of which are made of ABS, epoxy resin or leather shell encapsulated chips.There are many shapes for customers to choose from.

  • 2 options for these EM 125kHz Key FOBs:

    Pre-Defined: The FOB comes with a pre-defined 10-digit ID programmed to the card
    Writable: The FOB comes with no defined ID
    The FOB will need to be assigned a custom 10-digit ID by the user

  • Small and exquisite, easy to use and sensitive
  • Customized Key Fob Size and Shape
  • 100% High Quality and High Security
  • Double waterproof: glue covering and ultrasonic pressing
  • Variety of Styles and Colors to Choose From

Material: ABS/PC


Optional chip: EM4305,EM4200,MIFARE Classic 1K, MIFARE Classic 4K, and MIFARE DESFire

Memory:Determined by the chip


Protocol:ISO11784/11785,ISO 14443A


Reading distance:0-10cm

Working Temperature:-25°C to 65°C

  • Replace access card
  • Member Management
  •  School canteen meal card

Frequently Asked Questions About RFID Keyfob

Radio-frequency identification (RFIDkey fob is a package form of RFID tag, small, sturdy, convenient to carry, widely used in access control, all-in-one card, etc.

Smart keys work through RFID, a radio frequency identification system that uses electromagnetic fields to identify and track data on "tags" that contain stored information. Transmission through magnetic field and radio waves.

RFID Frequency and Range

Frequency RANGE
LF 120 – 140 kHz Maximum read range 30 cm - Special Antenna and Tags - 2 meters
HF 13.56MHz Maximum read range 1.5 M - Special Antenna and Tags - 2 meters
UHF 860-960MHz Maximum read range 10 meters - Special Antenna and chips - 15 meters or more
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NewOne has focused on the production of RFID-related products for 12 years, with customers all over the world,Become our customer and give you the most professional support and service

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      We have been engaged in the RFID industry for more than 12 years. If you encounter any questions about RFID,We can discuss it together.