Compact, low power module allows for easy integration of iCLASS read/write contactless smart card technology into small form factor devices..
    * Base Model Number: 3131
    * Reads iCLASS, MIFARE Standard, Ultralight, or DESFire cards.
    * Dimensions: 1.10" x 1.420"(27.94 mm x 30.48) without antenna.