rfid Key fobs card

When brought near an RFID reader, the reader emits radio waves that power up the card or fob’s microchip. 

The chip then transmits its stored data back to the reader via radio waves. 

This process enables the reader to identify the individual or object without needing direct physical contact or a line of sight. 

Fobs are often made from rugged materials like ABS and can be resistant to water, dust, and impact, making them suitable for harsh environments. 

Their compact size, particularly for keyfobs, makes them easy to carry on keychains and difficult to lose. 

Options exist for custom logos, colors, shapes, and chip types to match specific branding or functional needs. 

Some are pre-programmed with unique IDs and are read-only, while others are writable, allowing users to assign specific access privileges or other data.