Garmin B150M Bronze 12° Thru-Hull Transducer - 300W, 8-Pin

The Garmin B150M Bronze 12° Thru-Hull Transducer is a professional-grade sounder head built for serious anglers and boaters who demand accurate, reliable bottom tracking and fish detection. This flush-mounted bronze housing transducer delivers 300 watts of power, making it suitable for a wide range of hull types and deadrise angles without requiring fairing blocks or complex installation modifications. Whether you're running a deep-V offshore hull or a shallow-draft bay boat, the internally tilted 12° element adapts to your specific vessel geometry.

This transducer features bronze construction that resists corrosion in saltwater and freshwater environments, critical for long-term durability in the marine setting. The 8-pin connector provides standard integration with Garmin fishfinding systems and compatible marine electronics. At 300 watts, the B150M generates strong signal penetration for deep-water applications while maintaining clean, detailed returns at shallow depths. The 12° tilt accommodation eliminates deadrise compensation headaches—no need to machine fairing blocks or worry about hull angle mismatch, which can introduce sounder dead zones and blind spots common with improperly mounted transducers.

Boaters and charter captains operating Garmin ecosystems will find this transducer a direct retrofit or new-build option for reliable sounder performance. Installation requires a thru-hull through-deck mount, typical of production and custom vessels. The compact dimensions and moderate 3.8-pound weight make handling straightforward during installation. Anglers targeting structure, following depth contours, and monitoring water conditions during tournaments benefit most from this mid-range power output and robust construction. Pair this with a compatible Garmin chartplotter or sounder head for comprehensive marine navigation and fish-finding capability.