DoorKing 1830-404 Memory Chip 3000 Capacity control-board 600 lbs also supported with

600 lbs also supported with adjustments)

Requires MA031 adapter collars

With its durable components and compatibility with All-O-Matic gate operators

It's available in black or gray to match different installation environments

is a #70 gear reducer with a 30:1 ratio designed for use with LiftMaster CSW200

DoorKing 1830-404 Memory Chip 3000 Capacity control-board 600 lbs also supported withReplacement Memory Chip for DoorKing Access Systems The DoorKing 1830 404 Memory Chip is a direct replacement for the legacy 1830 402 and 1837 147 chips, offering enhanced compatibility and expanded capacity. Designed for DoorKing telephone entry and access control systems, this chip supports models 1833, 1835, 1837, and 1838 144. With a 3000 entry capacity, the 1830 404 ensures your system can handle larger databases, making it an essential upgrade