Caravan sat-nav now comes with features, such as broad LCD screen, DVD player, radio tuner with Bluetooth integration and iPod support. Such advanced satellite navigators direct you in a safe manner to avoid low bridges, narrow roads and other hazards. The most important factor while choosing the caravan sat-nav is its version. The latest version is the most updated version, which contains latest road maps, information on new hazards and new developments etc. If you do not buy the latest version, you have a lot to lose. If you already own a caravan sat-nav then, you need to get it updated regularly so that you do not land into troubles, which developed recently but your sat-nav does not have the database updated with it.