PhidgetRFID reads RFID tags that are brought in close proximity, within 3 inches. Includes USB cable but not tags. We recommend that you purchase thePhidgetRFID Kit (Item#2002), as it comes with an assortment of tags, at a slight discount.

PhidgetRFID reads RFID tags, a technology used for security and location tracking. Each RFID tag contains a unique code. The PhidgetRFID reader reads these codes and returns them to your application when tags are brought within 10 cm (4") of the reader. The tag does not have to be visible to be read.

What are people building with Phidgets?
737 Flight Simulator ‌ Grouplab Student Project Gallery

Datasheets
Technical Information / Manual (.pdf 391 Kb)
COM API Manual - Windows (.pdf 478 Kb)
C API Manual-Windows/MacOSX/Linux (.pdf 339 Kb)
Action Script API Manual(.pdf 470 Kb)
.Net API Manual (.pdf 579 Kb)
Java Docs(.zip 181 kb)

More information can be found on Phidgets website & fourum