Humminbird XPT-9-HW-T Portable. Portable Dual Spectrum CHIRP Transducer supports Dual Spectrum CHIRP 2D Sonar with high frequency beam and wide cone angle, offering CHIRP range of 150-220kHz and max depth of 1200ft. Suction cup mount adheres to smooth surface hulls for easy installation. Includes all required mounting hardware, built-in temperature sensor and 20 cable. Not recommended for high speeds.