• Audio/video sub-master station extends a JK Series intercom system's door-answering capabilities into multiple rooms or over a large area.
• 3-1/2" LCD color monitor activates when receiving a call from the video door station to aid visitor identification.
• Video monitor controls allow panning, tilting, and zooming of the 170-degree camera on the JK Series door station (sold separately) to customize the master operator's view of the visitor area.
• Door-release button controls an electric strike (sold separately) to remotely unlock the entrance for a visitor.
• Call button initiates audio communication with the master station for remote communication.

The Aiphone JK-1HD audio/video sub-master station for Aiphone JK Series extends the door-answering capabilities of the master station (sold separately) into multiple rooms or over a large area. An incoming call activates the display on the 3-1/2" LCD color monitor to aid visitor identification. The audio and video feed from the door station continues to transmit to the sub-master station for 45 seconds if the call is not answered. A call can be answered by either holding down the answering button for push-to-talk action or by tapping the button for hands-free communication with the caller. The video monitor controls allow panning, tilting, and zooming of the 170-degree camera on the JK Series door station (sold separately) to customize the view of the entrance. The door-release button works with an electric strike (sold separately) to remotely unlock the entrance for the visitor. The call button initiates audio communication with the master station for remote communication. The monitor button can be pressed at any time to listen and receive video feed from the door station. Housing is ABS plastic. The chime and audio volume is adjustable. SpecificationsOverall dimensions7-5/16 x 5-5/16 x 1-1/16 inches/185 x 135 x 27 mm (H x W x D)*Compatible wires (master to sub-master)Aiphone 871804 (sold separately)Door release contact rating24VAC or 24 VDC at 500mA. Use Aiphone RY-18L (sold separately) for larger contact rating.Power requirements18VDC. Use Aiphone PS-1820UL power supply (sold separately).*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. Door intercom systems allow an occupant of a building to communicate remotely with a visitor through at least one door intercom and master intercom. Master intercoms with a door-access button remotely unlock the door for the visitor. Aiphone manufactures intercom systems for residential, business, and care structures. The company, founded in Japan in 1948, has its North American headquarters in Bellevue, WA. Aiphone meets International Organization for Standardization (ISO) standards 9001 and 14001. What's in the Box? ------------------ * Aiphone JK-1HD sub-master station * ing hardware * Instructions