Humminbird 4088301 PiranhaMAX 153 Dual Beam Fishfinder Depth: 600 feet Mounting: Tilt Mount Sonar: Dual Beam 4 inch 4 level grayscale display Temperature 4" Fest Display With 4-level Grayscale 160 X 128 Pixels 100w Rms Power 800w Ptp Power Includes Water Temperature