125Khz Writable RFID Proximity Keyfobs, 50 PCS Proximity ID Card Key Changeable Keyfobs Token Tag Writable Token Proximity ID Access Control Key Fob Tags Card for Door Access Control (Black)

Product Description<br>Approx. Fob Size: 32 x 40 x 3.5mm. High-Quality Copper Coil inside. Casing Material: ABS Plastic. Color: Black. Package includes 50 PCS. Sophisticated design, stable performance, convenient in use.

• • NOTE: You cannot add them to RFID locks directly. You must write data into them by a 125kHz RFID card writer before use. They are blank tags, no data inside. Can write by 125KHz RFID writer/copier,CAN NOT WORK WITH ONITY SYSTEM and Proxmark3 RDV4.
• • Note: These are 125KHz key fobs (tags). Keychain ID/IC card for access control systems. All key fobs come attached to key ring. If you want to register them to your lock system, please ensure that your system uses the same frequency 125KHz. Incompatible with other frequencies like 125kHz.
• • Writable rewritable chip: There is no limit on the number of times, you can erase and write repeatedly or directly overwrite the original information. They can write by 125KHz RFID writer/copier. It can be erased and written 100,000 times. Suitable for making new and back-up tags, with the 125kHz RFID card writer/copier.
• • Suitable for 125KHz RFID proximity access control system and ID management system. Support read and rewrite, can be used to copy UID code from other RFID ID card. Can write by 125KHz RFID writer/copier,NOT NFC CHIP, Can't work with NFC Phone.
• Packing list: 50 pcs