125kHz RFID Key Fobs TK4100 Access Control Tags – 100 Pack
125kHz RFID Key Fobs TK4100 Access Control Tags – 100 Pack
125kHz RFID Key Fobs – 100-Pack TK4100 Proximity Access Control Tags
Keep your facility, office, hotel, or campus secure with this convenient 100-piece set of 125kHz RFID key fobs. Built on the reliable TK4100 chip, each fob arrives pre-programmed with a unique laser-printed ID code — ready to use straight out of the box with any compatible 125kHz RFID reader or access control system.
Key Specifications
- Quantity: 100 fobs per lot
- Material: Durable ABS plastic
- Operating Frequency: 125 kHz
- Chip Type: TK4100
- Read Range: 3–10 cm (reader-dependent)
- Operating Temperature: -40°C to +85°C
- Water Resistant: Yes
- Key Ring: Included with every fob
- ID Encoding: Factory pre-programmed, unique per fob, laser printed
Wide Compatibility & Applications
These fobs are compatible with virtually all standard 125kHz RFID door entry readers and access control systems. Ideal for a broad range of uses, including:
- Office and building door access control
- Hotel room locks
- Staff attendance and time-tracking systems
- School and campus access management
- Parking lot entry and payment systems
- Public transportation and ticketing
- Social security and ID identification systems
- Municipal and ancillary service payment
Why Choose This 100-Pack?
- ✅ Bulk Value: 100 individually programmed fobs for businesses of any size
- ✅ Plug-and-Play: No programming required — unique IDs are pre-loaded at the factory
- ✅ Durable Design: ABS construction withstands daily wear; water resistant for all-weather use
- ✅ Easy to Carry: Compact, lightweight, and key-ring ready
- ✅ Universal Compatibility: Works with all standard 125kHz RFID readers
Note: Product color may vary slightly from images due to shooting environment lighting differences. Made in Mainland China.
For more information on RFID technology standards and electronic access control security, visit the National Institute of Standards and Technology (NIST) – Cybersecurity Resources.
Frequently Asked Questions
Q: Are these 125kHz RFID key fobs compatible with my existing access control system?
A: Yes — these TK4100 chip fobs are compatible with virtually all standard 125kHz RFID readers and access control systems, including common door entry, hotel lock, attendance, and parking systems. Always confirm your reader supports 125kHz EM/TK4100 format before purchasing.
Q: Do I need to program the RFID key fobs before use?
A: No programming is required. Each fob in this 100-pack comes factory pre-programmed with a unique ID code that is laser printed on the fob itself. Simply enroll each fob's ID into your access control system's software or controller to grant access.
Q: How many fobs are included, and what is each fob made of?
A: This listing includes 100 RFID key fobs, each made from durable ABS plastic with an attached key ring. They are water resistant and rated for operating temperatures from -40°C to +85°C, making them suitable for both indoor and outdoor environments.
Q: What is the read range of these 125kHz RFID key fobs?
A: The typical read (detection) range is 3 to 10 centimeters, depending on the sensitivity and antenna size of your RFID reader. Standard access control card readers will generally read these fobs reliably within this range.