This is a retired product, but fear not as there is a newer, better version available: SEN-11828
Replacement: SEN-11828. This part has a new rev that accepts a lower voltage input, go check it out! This page is for reference only.
Description: This is a very simple to use RFID reader module from ID Innovations. With a built in antenna, the only holdup is the 2mm pin spacing (breakout board available below). Power the module, hold up a card, and get a serial string output containing the unique ID of the card.