Biometric Key Fobs for Access Control

Biometric key fobs are advanced access control credentials that integrate physical hardware with biological verification—most commonly a fingerprint sensor—directly on the device. Unlike traditional "passive" fobs that only contain a chip, these "active" fobs require a biometric match before they will transmit an authorized signal to a reader. Key Features and Description On-Device Biometric Sensor: Typically features an integrated fingerprint scanner on the fob's surface. Encrypted Template Storage: Instead of a full image of a fingerprint, the device stores a unique mathematical "hash" or template, which is encrypted to protect user privacy. Authentication Factor: Acts as a "something you have" (the fob) and "something you are" (the fingerprint) credential, providing built-in multi-factor authentication (MFA).