100PCS RFID 125khz Em4305 Rewritable Chip 25mm Coin

Features:
Chip: EM4305 Writable RFID
Diameter: 25mm
Material: PVC+ Adhensive sticker 
Operation frequency: 125Khz
Capacity:512bits
Protocol:11784/11785
Readable and writable
Detecting distance: 3-10cm
Compatible with Door Entry system
Easy to carry
Water resistant
Compatible with all 125khz RFID reader to gain access
No external power required.
Brand new card for entrance guard system.
It applies to access control, hotel locks, staff attendance and school campus access and payment control, identification and security systems, parking lot entry and payment, social security management, transportation payment, municipal and ancillary service payment

Package List:

1*100pcs/lot 100PCS RFID 125khz Em4305 Rewritable Chip 25mm Coin with Self-Adhesive