Access Control RFID Key Fobs

RFID key fobs, which are used for activating such things as remote keyless entry systems on motor vehicles.

RFID Key Fobs are embedded with chips like

LF 125KHz: TK4100, EM4200, EM4305, T5577

HF 13.56MHz: NTAG203, NTAG213, NTAG216, Mifare S50/S70, Ultralight (C), Fudan08 I-CODE SLi etc

Colors can be: Red, Blue, Orange, Yellow, Gray, Black or customized

Key fobs are used in apartment buildings and condominium buildings for access to common areas (for example, lobby doors, storage areas, fitness room, pool). These usually contain a passive RFID tag. The fob operates in much the same manner as a proximity card to communicate (via a reader pad) with a central server for the building, which can be programmed to allow access only to those areas in which the tenant or owner is permitted to access, or only within certain time frames.