Doorking Inc

• The 2358-010 tracker expansion board is an essential component for expanding and enhancing your DoorKing access control system. Designed for compatibility with models 1833, 1835, 1837, and 1838 multi-door access controllers, this expansion board allows for seamless integration of up to 48 additional access points. Its UL 294 certification ensures it meets stringent safety and performance standards, making it ideal for secure and restricted areas.