EM4305 125kHz Rewritable Key Fob RFID Tag
Part number: EM4305RFID & NFC
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Prices updated: 13 Oct 2026
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About this product
A rewritable 125 kHz key fob with an EM4305 chip, used as a keychain access token in access control systems. Its ID can be written with a compatible 125 kHz RFID writer and read by 125 kHz EM-type readers.
Specifications
- Frequency
- 125 kHz
- Chip
- EM4305 (rewritable)
- Form
- Key fob
Frequently asked questions
Can I reuse the key fob after writing a new ID?
Yes. The chip is rewritable, so it can be reprogrammed with a new ID using a compatible writer.
Does it work with 13.56 MHz readers?
No. This key fob operates at 125 kHz, so it needs a 125 kHz reader.
