
Custom 125KHz TK4100 EM4200 RFID Keyfob
- Place of Origin:Guangdong, China
- Brand Name:Cardy
- Type:keyfob
- Special Features:Waterproof / Weatherproof, Waterproof / Weatherproof
- Network:None
- Application:Outdoor, Access Control System, etc
- Material:ABS
- Frequency:125 KHz
- Protocol:ISO14443A
- Printing:Silkscreen printing
- Chip:TK4100/T5577 / EM4305/EM4200
- Keyword:RFID keyfob
- Reading range:1-5cm(base on reader power)
- Communication Interface:RFID


Material | ABS/PVC/PET/Epoxy |
Chip | FM11RF08,TK4100, EM4100, EM4200, EM4305, T5577 ECT. |
Temperature | -20 to 80℃ |
Working frequency | 125KHz(LF): 1-5cm 13.56MHz(HF): 1-10cm 860-960MHz(UHF): 1-5M |
1. Public Transportation 2. Electronic Toll Collection 3. Loyalty Cards 4. Event Ticketing 5. Car Parking 6. Access control 7. Event ticketing 8. Gaming & identity |



Frequency | Protocol | Available Chip Tybes | Memory | Supplier |
- | HITAGS2048 | 256/2048 bits | NXP | |
- | HITAG1 | 2048 bits | ||
- | HITAG2 | 256 bits | ||
- | ATMEL T5577 | 330 bits | ATMEL | |
- | TK4100 | - | - | |
- | EM4200 | - | ||
- | EM4305 | 512 bits | ||
MIFARE Classic® 1K | 1K bytes | |||
MIFARE Classic® 4K | 4K bytes | |||
MIFARE Ultralight® C | 192 bytes | |||
MIFARE Ultralight® EV1 | 384/1024 bytes | |||
MIFARE® DESFIRE® EV1 2K | 2K bytes | |||
MIFARE® DESFIRE® EV1 4K | 4K bytes | |||
MIFARE® DESFIRE® EV1 8K | 8K bytes | |||
MIFARE Plus® 2K | 2K bytes | |||
MIFARE Plus® 4K | 4K bytes | |||
NTAG 213 | 180 bytes | |||
NTAG 215 | 504 bytes | |||
NTAG 216 | 888 bytes | |||
NTAG 424 | 1024 bytes | |||
ISO15693 | I-CODE SLI-X | 128 bytes | ||
I-CODE SLI-S | 256 bytes | |||
- | FM4442 | 256 bytes | Fudan | |
- | FM11RF08 | 1Kbyte | ||
- | FM11RF32 | 4K bytes | ||
915MHz | - | Alien9662 | 96 bit/512 bit | Alien |




Headquartered in Nanshan District, Shenzhen, Cardy was established in 2004. It is a manufacturer specializing in the R&D, production and sales of RFID/NFC cards, tags, keyc- hains, wristbands and card readers of its own brand (KD, CARDY) , adhere to independent research and development, continuous innovation, and strive to become a first-class supporting manufacturer and a provider




card will be available before shipping out.
not be worry we will replace them for you once we confirm the unqualified ones.

It depends on your need.


for your reference. Samples are free, you just need to deal with shipping.