Our link of cards, fobs, adhesive tags and wristbands that are compatible with DoorKing readers. Some of the DoorKing readers/scanners that will accept these credentials are 1815-333, 1815-330, 1815-305, 1815-302, 1815-301, 1815-300, 1504-124, 1815-305, and all 18815-xxx readers. Our credentials will function similarly to the DKProx 1508-120, 1508-121, 1508-112, 1508-123, 1508-111, and 1508-129 cards and fobs.