The Model DVS-KIT #23 12-Channel Wireless Security Console Kit #23 includes a security system console and a selection of popular security system accessories. The DVS-KIT #23 kit includes: (1) DVS-1200: 12-Channel Supervised Wireless Security Console (2) DXS-31: Supervised Universal Door/Window Transmitters (1) DXS-54: Supervised Passive Infrared Motion Detector Transmitter Features