• Additional Camera Unit pairs with DXR-8 (3.5″ model) and is NOT compatible with the DXR-8 PRO. • Features remote pan/tilt/zoom, night vision, a remote thermometer, and interchangeable lens. • Expand up to 4 camera units per monitor unit. • Zoom lenses and wide-angle lenses are sold separately. Camera unit power adapter included. NOTE: Only compatible with the DXR-8 system.