The Humminbird XM 9 HW MDI T HELIX MEGA DI+ Transom Mount Transducer is a high-quality outdoor fishfinder transducer designed for fishing enthusiasts. This black plastic transducer features a maximum depth of 1200 ft and comes with mounting hardware included for easy installation. With its Mega DI sensors and decimal measurement system, it provides accurate depth readings and temperature information. Compatible with the Humminbird XM 9 HW MDI T HELIX model, this transducer is a valuable tool for anglers looking to enhance their fishing experience.