Doorking 1837-010 Main Control Board replacement-key Expand Up to Six Devices:

Expand Up to Six Devices: Control additional gates or doors with RS-485 card readers

9/16" width

The LiftMaster K1D8387-1CC Expansion Board is a UL325-compliant component designed to expand the functionality of your LiftMaster ELITE gate operators

it is compatible with other Eagle gate opener models

high-visibility finish

Doorking 1837-010 Main Control Board replacement-key Expand Up to Six Devices:Dependable Replacement Board for Seamless Access Control Operation The DoorKing 1837 010 Main Control Board is a vital replacement part for DoorKing 1837 series telephone entry systems. Most clients turn to this board when their original unit fails, ensuring that access control functions are restored swiftly and reliably. Acting as the central processor, this board manages all key access functions, making it indispensable for gated communities, multi