
Factory Price Customized Door Access Control Keychains Rings RFID Smart ID Keyfob 125Khz TK4100 Chip RFID Keyfob
- Place of Origin:Guangdong, China
- Brand Name:Cardy
- Type:Keyfob, Contactless Keytag
- Special Features:Waterproof / Weatherproof
- Network:None
- Application:Outdoor, Bank, traffic, club, gym, access control, super market, etc.
- Material:ABS / leather
- Size:45.5*35.5*4.2mm; customizable
- Frequency:125KHz
- Color:Blue, Red, Yellow, Black or customized
- Printing:Silkscreen printing logo
- Surface:Matte finish
- Craft:Laser CodeUV InkSerial NumberEmbossingThermal Printing
- Chip:TK4100/EM4200/EM4305/T5577



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 |




It is in the form of a keychain and easy towear. It also uses the
"active work"mode to work,
and actively transmits signals to the reader writer.
With the company's active reader writer, the recognition distance can reach a radius of 100 metersin a good
visual environment.
The transmission frequency is adjustable.






card will be available before shipping out.
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 of solutions to the Internet of Things industry. We have a modern production base of 8,000 square meters, advanced
automated production lines, and an annual production capacity of more than 100 million pieces. With excellent quality, reasonable
price, innovative design and effective service, our products have won a good reputation all over the world.



It depends on your need.


· We have 18 years of factory, rich experience and strong customization ability to meet your needs to the greatest extent.
new products, the latest RFID products come from us.
for your reference. Samples are free, you just need to deal with shipping.
be customized including material, size, thickness and logo. We can serve ODM and OEM. To avoid mistakes,We recommend that
customers can provide design files in formats such as AI or PDF.
have requirements for production time, Please contact us and we can support your schedule well.