Camden's Wiegand receivers are designed to interface with existing access control systems for both long and short access applications. Pressing one of two buttons, users can control a barrier gate or overhead door up to 300' (100m) away. The same transmitter can be presented in front of a card reader, and operate as a conventional access credential. Identical 26-Bit Wiegand ID numbers will be sent for both buttons and for the reader to manage multiple users in the access control database.