Furuno B785M Bronze Thru-Hull Chirp Transducer w/High Speed Fairing Block

The Furuno B785M Bronze Thru-Hull Chirp Transducer with High Speed Fairing Block is a professional-grade marine sonar transducer engineered for both weekend anglers and offshore fishing operations. This bronze thru-hull transducer delivers reliable bottom-finding, fish detection, and structure identification across a broad frequency range, making it a dependable choice for vessel operators who demand consistent performance in varying water conditions.

The B785M operates across the Chirp 80–130 kHz frequency band with 600 watts of power output, providing the versatility needed to read shallow structure and deep-water targets with precision. The included high-speed fairing block enables safe operation at higher vessel speeds without signal loss or transducer cavitation, a critical consideration for boats regularly cruising above 25 knots. The 10-pin connector integrates seamlessly with compatible Furuno fishfinder and multifunction display units, while the bronze hull material resists saltwater corrosion over extended deployment periods.

This transducer suits serious anglers targeting offshore species, commercial operators managing fishing grounds, and recreational boaters who prioritize sonar reliability. The Chirp pulse technology excels at target separation and bottom definition, particularly valuable when distinguishing baitfish from larger species or when mapping thermoclines and depth transitions. Installation requires professional through-hull mounting and proper integration with your existing sonar system to ensure warranty compliance and optimal performance.

Furuno holds strong recognition in marine electronics for engineering durability into salt-environment applications. The B785M's bronze construction and sealed connector design reflect that commitment, though like all thru-hull components, it benefits from regular inspection and maintenance to maximize service life.