DoorKing 1971-010 Control Board for 1812 Plus doorking an auxiliary input for additional

an auxiliary input for additional security integrations

facility managers

The LiftMaster K75-50893

The DoorKing 1830-185 TCP/IP to RS-232 Converter Kit is a powerful tool for integrating DoorKing 1830 series telephone entry and access control systems into your network

The DoorKing 2600-588 Heater Kit is a genuine OEM accessory designed to provide temperature regulation for the 1812 model telephone intercom system in cold-weather environments

DoorKing 1971-010 Control Board for 1812 Plus doorking an auxiliary input for additionalControl Board for 1812 Plus Telephone Entry Systems The DoorKing 1971 010 Control Board is a replacement printed circuit board (PCB) designed for use in DoorKing 1812 Plus telephone entry systems. It manages the systems communication, relay control, and user interface functions, ensuring smooth operation of residential and commercial entry applications. Built to factory specifications, this control board restores full system functionality and