XP 9 HW T Plastic In-hull Mount Transducer by Humminbird®. Measures: Depth/Temperature. Frequency: 140-240kHz. In-Hull 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 1200' Intended for glue-in installation inside single layer fiberglass hulls. Includes built-in temperature sensor, epoxy kit and 20' cable.