KGuard OT801-4HW227A 8 Channel 500GB HDD DVR Home Security System with 600TVL Day Night Weatherproof Cameras x4 8-Channel H.264 Standalone DVR with 500GB HDD Easily connects to TV for additional LCD display Live video display, record, playback and backup with user-friendly interface 4 600TVL Night Vision Cameras up to 30ft 4 Day & Night high-quality weather-proof cameras viewable in total darkness