Featuresr 28 tft lcd display with led backlight easy reading at night or under weak light backlight brightness is adjustable according to different needsr detect and display fish location and water depth detecting depth up to 45m 148ftr water bottom contour and water temperature indicatorr audible fish and depth alarm clear fish icon displayr 20 level sensitivity settings available higher degree sensitivity can help you get more accurate chances to detect the fishr update the detect