No Guide Lines: Unaffected monitor usage; Multiple installations on vehicle blind spots for comprehensive road coverage High Definition Visuals: Vibrant colors, 420 TV lines, 648x488 resolution, crisp picture, vivid contrast Automatic Night Vision: 18 IR LED lights for day/night use, IR activation in low light, 30ft night visibility Robust Waterproofing: Durable lens, sealed glass front for rain/snow protection, 120 wide view