Where the H element trades some of the M element's extra depth penetration for finer target separation and sharper bottom detail -- better suited to shallower-to-moderate-depth fishing where picking individual fish out from structure matters more than chasing maximum depth -- this specific unit is Airmar's 20-degree tilted-element version, built with a fixed internal tilt to compensate for a steeper hull deadrise of roughly 20 degrees at the mounting location, so the beam still points straight down at the seabed on a sharply angled hull. It shares the family's 1kW power rating, an 8-pin connector for direct wiring into a compatible Garmin sounder module or MFD sonar input, and CHIRP broadband transmission for depth sounding and fish/bottom imaging. Sold as the transducer and mounting hardware only, for a fixed thru-hull installation.