Blue Prox RFID (proximity) key fob 125 kHz. Keyfob. 70102070NBLUE

Black Prox RFID (proximity) key fob. EM 4100 / EM 4200. 125 kHz with chip number printed on it. All the key fobs has chip with preprogrammed Unique ID Number. UID can't be changed. UID is preprinted on the keyfob.

White blank Prox RFID EM 4100 COM (proximity) cards - CR80 0.76 mm/760 micron, 85.60 × 53.98 mm (standard credit card size). TK4100.

MIFARE Ultralight® EV1 13.56Mhz RFID NFC 40 x 25 mm Rectangular Label / Sticker.