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LF Key Fob

LF Key Fob

In stock •

 Production Time: 15-20 days

 • Per item from

€9,99
  • Flexible solutions
  • The best prices
  • English customer support

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Product information

Low Frequency key fob – access with your own design

LF RFID key fobs for stable access and identification in daily operations.

These Low Frequency key fobs are developed for systems where simplicity, compatibility and reliability are essential. With 125 kHz RFID and the option to design your own, you get a reliable solution that works seamlessly in both access and locker systems.

Features

  • Chip: 125 kHz RFID (e.g. EM4200 or TK4100) – compatible with most LF access and locker systems
  • Shape: Choose from many standard shapes or specially designed shapes
  • Material: Durable ABS plastic – water-repellent and suitable for daily use
  • Design: Laser engraving, embossed logo, numbering or colored printing
  • Mounting: Comes with metal ring – ready for key ring, bag or ID straps
  • Setup: Chip and frequency are adapted to your existing system
  • Minimum order: 100 pcs.

Application

Suitable for access control, locker systems, membership solutions, companies, schools and facilities with LF-based systems.

Why JM Band®

Experienced supplier of RFID key tags, where correct frequency selection, system compatibility and practical everyday use are more important than marketing promises.

SKU:RFID-250514

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Production Time 15-20 days
MaterialABS
RFID EM4200 — TK4100 — HITAG®
Customisation
Certificates
Material TypeABS
Sustainable ElementsFully recyclable.
Water ResistanceWater-resistant
Color Fastness6/8
ComfortCan feel “plastic-rigid” on skin
Fire RetardantNot Fire Retardant
Temperature Tolerance−20 to +80 °C
CO2 Footprint 0.018 kg CO2e
Print MethodFull colour
Amount of ColoursUnlimited
SurfaceMatte
Colour PaletteCMYK
Scratch ResistanceMedium
Print Durability3 days
Print QualityPhoto
Serialization Available
SpecificationEM4200TK4100HITAG®
ManufacturerEM MicroelectronicFudanNXP
Frequency125 kHz125 kHz125 kHz
ISO/IEC StandardISO 11784/85ISO 11784/85, ISO/IEC 10536ISO 11784/85, ISO 14223, ISO 18000-2
Max Range60.0 mm50.0 mm50.0 mm
Memory Capacity16 bytes8 bytes32,256 bytes
UID Length5 bytes5 bytes4 bytes
Data ProtectionNoneNoneProprietary key auth
Read/Write Cycles00100000
Certificate 1
DescriptionCE marking is a declaration by the manufacturer that a product meets the health, safety, and environmental standards of the European Economic Area (EEA) and can be sold freely within it.
Certificate 2
Name EN ISO 7816-8:2021
Issued ByIntegra96 Int.
Certificate NumberTTC-22-2911/14/02
Valid Until29. Nov 2027
DescriptionThis standard specifies the technical commands used for security operations within smart cards (integrated circuit cards). It defines the protocols for cryptographic computations, digital signatures, and user verification (authentication). Ideally used to ensure secure data exchange between the chip (e.g., in a wristband) and the reading device.
Certificate 3
Name IEC 62321 Series (RoHS 2011/65/EU)
Issued ByHTT TECHNOLOGY CO.
Certificate NumberHTT191213126R
DescriptionRoHS Certificate of Conformity verifies that the RFID wristbands (including Silicone, ABS, and PVC models) comply with the RoHS Directive 2011/65/EU and (EU) 2015/863. Tested according to IEC 62321 series standards to ensure restricted substances (like Lead, Mercury, Cadmium) are within legal limits.
Certificate 4
Name AAA Credit Rating System
Issued Bydun & bradstreet
Certificate NumberJM Band 2025
Valid Until30. Sep 2025
DescriptionAAA Highest Credit Worthiness Rating (2025). Issued by Dun & Bradstreet, indicating the company has an extremely strong financial position and superior ability to meet current payment obligations. This is the highest level in the credit rating scale.

Custom Shape LF RFID Key Fob – Tailored to Your Access System and Visual Identity

LF key fobs with a 125 kHz RFID chip are an ideal choice for access and locker systems where durability, simple functionality, and unique branding must go hand in hand. The fob can be designed in the exact shape that matches your visual identity—such as a logo, figure, icon, or special contour. Whether it's for a swimming pool, a membership club, or a company with access requirements, we ensure the right chip and setup for your system.

Features and Benefits

  • RFID Technology: 125 kHz chip – e.g., EM4200 or TK4100 – broad compatibility with LF systems
  • Shape: Tailored to your design – anything from company name to mascot or iconic silhouette
  • Material: Durable ABS – water-repellent and suitable for both indoor and outdoor use
  • Customization: Laser engraving, embossed logo, serial number, or colored printing
  • Mounting: Includes metal ring – ready to use
  • Delivery: 15–20 days – depends on complexity and quantity

Typical Applications

  • Swimming pools and sports halls
  • Fitness centers and membership clubs
  • Festivals and events
  • Business and storage areas with access control

Frequently Asked Questions

Which chips are supported?

We offer standard LF chips such as EM4200 and TK4100, which work with most 125 kHz systems. We are happy to advise based on your system.

Can we get the fob in our own shape?

Yes, the key fob is designed according to your wishes—it can be in the form of a company logo, mascot, or a particular icon.

Is the fob water-resistant and suitable for daily use?

Yes, ABS plastic is both durable and water-resistant, making the fob ideal for both indoor and outdoor environments.

What is the delivery time?

Standard delivery time is 15–20 days, depending on complexity and desired finish. We are happy to advise on the options.

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FAQ

We offer standard LF chips such as EM4200 and TK4100, which work with most 125 kHz systems. We are happy to advise based on your existing system.

Yes, the key chips can be produced in many different special shapes. Contact us for a catalog with shape options and advice on the best solution.

Yes, ABS plastic is durable and water-repellent, making the chip suitable for both indoor and outdoor use.

Standard delivery time is 15–20 days, depending on complexity and desired finish. We are happy to advise on the options.