Digital Lock Accessories

Spare RFID cards, fingerprint tags, backup 9V power cables, mounting accessories, and smart lock add-on components for digital door locks and digital furniture locks — T21's digital lock accessories collection covers the consumable and replacement components that keep smart lock systems running correctly over their operational life. RFID cards and key fobs are the most frequently replaced items in any smart lock installation — new household members, lost cards, and access revocation all require spare credentials. Backup power cables for 9V emergency access are essential to keep on hand for all battery-operated smart locks. Delivered all over India, dispatched from Bengaluru.

What RFID credentials are compatible with T21's smart locks? RFID card compatibility depends on the specific lock model — most smart locks in T21's range use 125kHz EM4100 or 13.56MHz MIFARE format RFID cards and key fobs. Check your lock's product page or manual for the correct RFID format before purchasing additional access cards. Using an incompatible format results in the card not being recognised by the lock sensor.

How many RFID cards or fingerprints can be registered on a typical smart lock? Most smart locks in T21's range support between 20 and 100 registered fingerprints and between 10 and 50 RFID cards simultaneously depending on the model. Registration capacity is listed on each individual lock's product page. For households or offices with multiple regular users, confirm the capacity before purchasing.