JK-1MD is the master monitor for the JK series PanTilt & Zoom video entry security system. This system will support 1 video door station and 2 inside color monitor stations. The JK series offers a 170° camera view and gives the user the ability PanTilt and Zoom the camera to a desired area for a better view of the visitor.The JK series offers a backlight/night sensitivity adjustment. In low light (night time) and heavy background light (sunny day) situations, the user can press the ADJUST button to improve the image quality to aid them in identifying the visitor.