EM4100 125khz RFID Key Fob (RFID Tag) – QuartzComponents

A plain RFID tag key with a permanent and unique non reprogrammable 32-bit ID which can be read using a RFID reader. This Tag key works with normal 125kHz RF range and the unique ID in it can be used to identify people/objects for access control or other automation applications. It is a passive type RFID tag which mean

HiLetgo 125Khz EM4100 USB RFID ID Card Reader Swipe Card Reader Plug and Play with Cable First 10 Digit : Electronics

HiLetgo 125Khz EM4100 USB RFID ID Card Reader Swipe Card Reader Plug and Play with Cable First 10 Digit : Electronics

High quality contactless keychain and 100pcs proximity blue rfid card keyfobs with id number print - tk4100/em4102 key card access systems smart card

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Proximity Blue RFID Card Keyfobs With ID Number Print TK4100/EM4102 Key Card Access Systems Smart Card From Aitech88, $0.25