The B265LH combines low- and high-frequency CHIRP technology to deliver outstanding fish detection and bottom definition across a wide range of depths. Its low-frequency array operates between 42 and 65 kHz, providing excellent deep-water penetration, while the high-frequency ceramic operates between 130 and 210 kHz with a narrow beam that allows precise target separation and detailed structure imaging.

The transducer integrates depth and fast-response temperature sensing, making it suitable for demanding fishing and professional marine applications. The bronze thru-hull housing with high-performance fairing block ensures stable operation and improved broadband performance at vessel speeds exceeding 30 knots.

The B265LH is available with different cable configurations, including FURUNO connectors for specific fishfinders or the Mix-and-Match™ cable system, allowing flexible integration with multiple sounder brands.

• Integrated depth and fast-response water temperature sensing

• 1 kW output power for excellent deep-water performance

• Low-frequency band: 42–65 kHz

• Low-frequency beamwidth: 25° to 16°

• Maximum depth rating: 914 m (3000 ft)

• High-frequency band: 130–210 kHz

• High-frequency beamwidth: 10° to 6°

• Maximum depth rating: 304 m (1000 ft)

• Total bandwidth of 103 kHz from a single transducer

• Includes popular fishing frequencies such as 50 kHz and 200 kHz within the CHIRP bandwidth

• Bronze housing with high-performance fairing block for stable performance at higher vessel speeds

• Also available in other mounting options: transom (TM265LH), pocket (PM265LH), cavity or welded tank (CM265LH), and in-hull (M265LH)

• Patented Xducer ID® technology for automatic transducer identification

Traditional marine Fish Finders operate at discrete frequencies such as 50 kHz and 200 kHz, use relatively short-duration transmit pulses, and use narrowband sonar transducers. In contrast, CHIRP (Compressed High-Intensity Radar Pulse) uses a precise sweep pattern of many frequencies within a long-duration transmit pulse from a broadband transducer. The equivalent sound energy transmitted into the water is 10 to 1000 times greater than a conventional marine Fish Finder. The echo energy returning to the transducer is likewise superior to that generated by a conventional transducer. The combination of CHIRP, a broadband transducer, and Furuno’s superior Digital Signal Processing, results in dramatically increased fish and bottom detection : TruEcho CHIRP™.