The Doorking 1815-216 is a Proximity Card Reader IDTeck RF 10. The 1815-216 has read range up to 4". This proximity card reader output the card data to the access controller (1833, 1835, 1837, or 1838) where the decision to grant or deny access is made. Ideal for both pedestrian and vehicular access control. Proximity cards transmit their information to the card reader without any physical contact. This provides an easy to use vandal resistant system. Access is granted when a valid card is presented to the card reader.