Humminbird 408940-1 Piranhamax 143 Single Beam Fishfinder Depth: 600-Feet Mounting: Tilt Mount Sonar: Single Beam 4-Inch 4 level grayscale display Temperature * 4" Display With 4-level Grayscale 160 X 128 Pixels 200khz/20 -10db Single-beam 800w Ptp Power Output 100w Rms Power Output