Humminbird PiranhaMax 210 3.8-Inch Waterproof Fishfinder Goes anywhere, and offers incredible ease of use with true, grayscale images and convenient features 20-degree, 200 kHz single-beam sonar optimized for coverage and precision bottom detail Reliable down to a depth of 600 feet, and provides a target separation of only 2.5 inches 3.875-inch FSTN LCD display with 160 x 132 lines of resolution in 4-level grayscale Comes with XHS 9 20 T suction-cup mount transducer, and a 1-year limited warranty