Featuresr detect and display fish location water temperature and depth water bottom contourr depth readout ranges from 06m to 100m 2328ftr clear fish icon display and audible fish alarm when fish has been foundr led backlight for clear reading even when fishing at night or in overcast weatherr 5 level sensitivity selectable making detection more accurater round transducer sensor with 25ft cable 45 degree beam angler it shows grass rock sand in the sea can be used for river pon