Wishlist Quick view KEYSCAN INC. - U.S. KEYSCAN INC. - U.S. Keyscan Inc. - U.S. CLAMSHELL PROX CARD - 36 BIT $241.74 Keyscan offers a complete line of smartcard and proximity cards and tags, and are available in Keyscans higher security 36 bit format. There is a Keyscan credential for every access control... Add to Cart Add to Wishlist