What it is
The ShillehTek 125kHz RFID Tag HT4168 Chip EM4100 Compatible Access Control is a compact key fob token designed for quick proximity scanning on standard EM4100-compatible readers. It’s a rugged ABS-shelled replacement for plastic badges, built for everyday carry on a keyring or lanyard in apartments, gyms, and office access control systems.
Pins
This is a self-contained RFID proximity tag (not an Arduino/Raspberry Pi sensor module), so it does not expose pins or a pinout. For system integration, confirm your reader supports 125kHz EM4100-compatible tags and enroll the tag using your access control system’s normal pairing process.
Technical Specifications
| Item | Details |
|---|---|
| RFID frequency | 125kHz |
| Chip | HT4168 |
| Reader compatibility | EM4100-compatible proximity readers |
| Housing material | ABS shell |
| Durability notes | Designed to resist drops and moisture for daily carry |
| Attachment | Reinforced steel ring hole (keyring/lanyard) |
| Form factor | Compact token/key fob style (coin-sized) |
Frequently Asked Questions
Will this 125kHz RFID tag work with EM4100 readers?
Yes—this tag is described as EM4100-compatible and is intended for standard 125kHz proximity reader systems. If your system supports enrolling EM4100-style tags, it should be a suitable replacement.
How do I add (enroll) the RFID key fob to my access control system?
Use your access controller’s normal enrollment method (admin menu, master card/fob, or management software) and present the tag near the reader. The exact steps depend on your reader/controller model.
Can I use this RFID tag with Arduino or Raspberry Pi?
Yes, with an external 125kHz RFID reader module that supports EM4100-compatible tags. The tag itself has no pins; the reader handles the interface to Arduino/Raspberry Pi for your project or datasheet-guided integration.
Is this RFID token waterproof and durable for daily keychain use?
It’s housed in a rugged ABS shell and is described as resisting drops and moisture, making it suitable for everyday carry on a keyring or lanyard. Avoid deliberate submersion unless your use case requires certified waterproofing.