Furuno B175M Bronze Thru-Hull 12° Tilt - Med Frequency

Discover Superior Underwater Visibility with the Furuno B175M Transducer

Imagine gliding through open waters, your sonar screen lighting up with crystal-clear images of fish schools, wrecks, and bottom contours—even in depths reaching 1,500 feet. The Furuno B175M Bronze Thru-Hull transducer with 12° tilt delivers exactly that, blending cutting-edge CHIRP technology with rugged bronze construction for boaters who demand precision without compromise. Perfect for offshore anglers chasing trophy species or navigators scanning murky seabeds, this medium-frequency powerhouse transforms guesswork into targeted action.

What sets it apart? Its wide 85-135 kHz CHIRP range scans broader areas at shallower depths while narrowing focus for deeper targets, adapting seamlessly to varied conditions. Anglers report spotting bait balls and structure details that traditional fixed-frequency units miss, giving you the edge on crowded fishing grounds.

Engineered for Peak Performance in Challenging Waters

Built with a 1,000-watt power rating, the B175M pushes sonar signals farther and clearer, excelling where weaker transducers fade. The 12° tilt aligns perfectly with hulls sporting 8-15° deadrise, ensuring the beam points straight down for undistorted readings—no more skewed bottom tracks from deadrise mismatch.

• Beamwidth Excellence: Starts at 16° for wide coverage near the surface, tightens to 11° for pinpoint deep-water resolution.
• Dual Functionality: Tracks depth and water temperature simultaneously, helping you adjust trolling speeds or locate thermoclines where fish congregate.
• Extended Reach: 39.3 feet of cable simplifies routing through bulkheads and consoles.

Marine pros swear by its sensitivity to subtle bottom hardness changes—sand flats versus rocky drop-offs—making it a go-to for wreck fishing or lobster spotting.

Seamless Installation Tailored for Real Boats

Thru-hull mounting keeps it flush and hydrodynamic, minimizing drag while maximizing signal strength. The bronze housing laughs off corrosion in saltwater, standing up to years of pounding waves. Opt for flush or tilted install based on your hull—either way, the 10-pin connector mates reliably with Furuno sounders, ensuring plug-and-play simplicity.

"Swapped in a B175M on my 32-foot center console; installation took under two hours. Now I see fish holding tight to structure at 400 feet that I never knew were there." – Experienced offshore captain

Pro tip: Fair the hull nut with epoxy for a smooth water flow, boosting speed and accuracy. Always bed the thru-hull with marine sealant to prevent leaks.

Why Medium CHIRP Shines for Serious Boaters

Unlike narrowband sonar that locks into one frequency, CHIRP sweeps continuously, delivering multiple echoes per ping. This means finer target separation—distinguish a single grouper from a school of snapper—and less clutter from bait or plankton. In medium band, it balances shallow versatility with deep penetration, ideal for coastal canyons or bluewater ledges.

Pair it with high-end Furuno displays, and you'll unlock advanced features like A-Scope for instant range data or Fish History to replay marks. Reliability? Backed by a solid warranty, it's crafted to endure the harshest marine environments.

Care and Longevity Tips for Your Investment

To keep readings sharp season after season, inspect the face annually for marine growth—clean gently with a soft brush and non-abrasive cleaner. Winterize by flushing with freshwater if trailered. Avoid antifouling paints on the active face; they dull sensitivity. With proper care, this transducer outlasts competitors, saving you reinstall headaches.