The display can be viewed in either Landscape or Portrait mode and can be substituted by other manufacturers whose monitors accept a VGA signal. ZOOM, Bottom Lock and a Mixed display mode are available in addition to three standard display modes (low frequency, high frequency and low/high frequency split display). An A-Scope split display function is also available. The JFC-130 also provides a Water temperature*/Water depth graph display function that features a graphic display of changes in water temperature and depth. The graph data is automatically stored into an internal memory and can be displayed with a single key operation. Standard Features 16-color tones can be separately selected, 4 colors used for display pictures and 4 colors are selectable for the background. Graphic Function Graphs displayed on all screens* Water temperature and depth change graphs that can be hidden. Standard Specifications Processor Unit Dimensions 13.62? (346mm) W x 5.1? (125mm) L x 8.57? (210mm) D Keyboard Dimensions 11.84? (290mm) L x 1.84? (45mm) H x 5.02? (123mm) W Display (optional) 10.4? Color TFT LCD (640 x 480 VGA) waterproof