NubianProx Credentials to Indala Access Control reader. Compatible to Indala FlexISO PVC Cards. Indala 26bit FlexCard Clamshell card, Indala ID Key fobs, Idala proximity Tags 26bit Format. Proximity cards are available in a wide range of styles, so you can pick the card type that will work best for your organization: Standard PVC cards ; Composite cards; Printable PVC or composite cards; Clamshell cards; Cards with magnetic stripes; Key fobs; Adhesive tags; Wristbands