10/20pcs RFID Keyfob125KHz Read-Only TK4100 EM4100 Proximity Smart Access Control ID Keychain Token Key Tag Access Control Card

Good luck with your favorite purchasesParameters: 1.Item: ID keychain 2. Material: ABS 3.Size:approx. 43.7 x 30.5 x 5.3mm 4. Response Frequency:125 KHz 5. Chip Type: TK4100/EM4100 6. Erase Life: 100000 (times) 7. Sensing Distance: 0-5 (cm) 8. Read Time: 0.2 (MS) 9. Operating Temperature: -40 ℃ - 85 ℃, waterproof 10. Color: Mixed Color 11. Scope of Application: Public Transportation, Parking, ID Card Identification, Attendance System, Ticketing, Card Payment, Product Identification, etc. 12. Each one includes key ring 13. Each token is pre-programmed with a unique ID, which is laser printed.

Notice: This 125khz RFID key card is read only, Can't be Write, cannot be used to record! Please make sure your device support this type key chip, if your device doesn't support this type key chip, it won't operate.