Furuno CA82B-35R FRP Tank-Mounted Transducer - 65kHz-110kHz - 2kW (No Plug)

The Furuno CA82B-35R FRP Tank-Mounted Transducer is a dual-frequency sonar head engineered for serious anglers and commercial boat operators who demand reliable bottom detection and fish finding across variable water conditions. Operating across the 65kHz to 110kHz frequency range, this transducer delivers the versatility needed for everything from shallow freshwater lakes to deeper saltwater applications. At 2kW power output, it provides the acoustic punch necessary to penetrate thermoclines and heavy vegetation while maintaining crisp sonar imagery on your Furuno fishfinder display.

Built from fiberglass-reinforced polymer (FRP), the CA82B-35R hull-mount design resists corrosion, UV degradation, and impacts from rocks and debris—critical durability factors for vessels operating in harsh marine environments. The tank-mount configuration allows installation inside the hull or through a thru-hull port, eliminating the need for external drilling and protecting the transducer from fouling and damage. Its dual-frequency architecture automatically switches between frequencies to optimize performance: lower frequencies penetrate deeper and cut through murk, while higher frequencies deliver finer detail for target separation and structure identification.

This transducer suits aluminum and fiberglass hull vessels up to mid-sized commercial applications, though buyers should verify compatibility with their specific Furuno chartplotter or sonar unit before purchase. The no-plug configuration requires proper connector wiring during installation, making it ideal for custom integrations or replacement scenarios where existing cabling remains sound. Weighing 13 lbs and measuring 14 x 8 x 14 inches, the CA82B-35R balances mounting flexibility with stability, ensuring minimal vibration transmission and noise interference during operation at speed.