How Do Card Scanners Work? Smart Card Readers Explained
Card scanners read a chip by contact or power it with a 13.56 MHz or 125 kHz field. How smart card and proximity readers work, and how they differ.
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proximity readers
2 articles tagged with "proximity readers"
Key Fob Door Entry Systems: How They Work & UK Costs (2026)
Key fob door entry systems for offices and blocks of flats: how fobs and readers work, what to specify, and UK costs of £500 to £800 per door installed.
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