The JK-1SD is the audio only sub for the JK series
PanTilt & Zoom video entry security system. This system will support 1 video door station and 2 inside monitor/sub 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.
The JK-1SD audio sub can talk to and release the door station as well as call the other inside monitor station.