RFID TK 4100 125 KHz Contactless card (Without UID)

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The TK4100 proximity ID card is based on SMC4100 IC connected with a few laps, which are then embedded into plastic. No batteries required. This card is read-only, 40-bits unique numbeR.

TK4100 is compatible with EM4100. These cards are primarily used in access control applications and other identity authentication.