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RFID Key Chain 125 kHz is a low-frequency RFID tag designed for contactless authentication in access control and security applications. Operating at 125 kHz, it is compatible with RFID readers such as the EM18. The keychain is pre-programmed with a unique identification number, making it ideal for personal and industrial security systems. Its compact and lightweight design allows easy attachment to key rings and ID lanyards. The keychain is made from durable ABS plastic, ensuring resistance to physical wear and tear. It has a reading range of up to 10 cm, providing quick and reliable scanning. It is widely used in time attendance systems, visitor management, and parking access control. The RFID keychain is waterproof and resistant to environmental factors, ensuring long-term usability. It is commonly used in corporate offices, apartment security systems, and electronic lockers. The tag does not require batteries, making it a maintenance-free solution for RFID authentication. It is a cost-effective alternative to RFID smart cards for individual users. The keychain can be used in smart locks and industrial automation for restricted access control.