Doorking 1812 Classic Surface Mount Telephone Entry System | DKS-1812-081 battery backup enclosure Doorking Pulley 4 Inch OD

Doorking Pulley 4 Inch OD 5/8 Inch Bore | DKS-1601-018

Q175) | LIF-K16-50195

Surface Housing (Format=7)

1 E024U Enclosure Kit (includes batteries) 5550

USAutomatic Wireless Receiver | USA-030205

Doorking 1812 Classic Surface Mount Telephone Entry System | DKS-1812-081 battery backup enclosure Doorking Pulley 4 Inch ODDoorking 1812 Classic Surface Mount Telephone Entry System DKS 1812 081 The model 1812 is a unique telephone intercom system that allows homeowners to use their telephone as an intercom to speak to a guest at a front door or gate without the necessity to pay for an additional telephone line at their home. With its "intercom mode" programming feature, 1812 can also be connected to a PBX or KSU type system, making it ideal for small businesses to