Doorking 1812-039 Video Adapter driveway-loop The Linear ACT-21A Remote Control

The Linear ACT-21A Remote Control is a 1-channel key ring transmitter engineered for reliable access control with Linear receivers and controllers

Its hydraulic operation provides smooth

Standalone Keypad with Intercom: Controls one or two entry points and stores up to 1

The control panel and other accessories are sold separately

providing a reliable

Doorking 1812-039 Video Adapter driveway-loop The Linear ACT-21A Remote ControlVideo Adapter for DoorKing 1812 Telephone Entry Systems The DoorKing 1812 039 is a video adapter used with DoorKing 1812 series telephone entry systems that support video functionality. Video Adapter 2 is required for proper video operation in applicable system configurations. This adapter supports correct video signal connection between compatible DoorKing video components and the entry system. Always review the system manual to confirm compatibility