- Operating Frequency: 125khz
- Unique ID Number
- Compatible with all ID door access devices or readers
- Contactless transmission
- Weight: 6g each
- Water and weather resistant
- chip style:EM4100
- can't rewritable,just read only.
- not HI D tag
1000pcs-- RFID ABS 125khz keyfobs TK4100 compatible with EM4100
Our price is including DHL/Fedex/TNT/EMS free shipping,we will choose the best way when we ship.