Chartplotter - universal device for small vessel, since it can combine a great number of functions. The main purpose is to display chartplotters electronic cards to ensure a comfortable and safe navigation. Also in the plotter it has a GPS receiver, which allows you to use the device as a navigator.
Very popular small plotters, sounders, as they do not occupy much space on board and make it possible to obtain as much information on a single display.
There are radar chartplotters, which also combine two very important devices and have fairly compact dimensions, which makes them very convenient for small vessels, boats, pleasure yachts.