or just click this link
http://www.fishonmarine.net
or just click this link
http://www.fishonmarine.net
After owning a LMS337 for just on a year ..... my advice is to buy a unit with a 7" screen if you really want a combo. Otherwise buy a separate sounder & plotter in 5" ...... I feel that you loose too much detail in a small screen combo .... Nagg