Featuresr display type 4 levels grayscale lcd v128 h96 with white led backlight backlight brightness is adjustabler depth reading from 20 to 120ft 06 36m in 110th precisionr bottom contour and water temperature indicatorr 10 level sensitivity setting and multi levels depth ranger auto zoom bottom tracking and quick manual zoomr stop chart at any timer bigsmall fish identification and fish depth indicatorr user selectable feet or meter readingr audible fish and depth alarm dep