The B265LH is a high-performance CHIRP transducer featuring a durable bronze housing for thru-hull installation. It operates across a wide frequency range—low frequency 42–65 kHz and high frequency 130–210 kHz—providing excellent deep and shallow water performance. With beam angles of 25° x 16° (low) and 10° x 6° (high), it delivers detailed sonar images for precise target detection. Rated at 1 kW, it's ideal for serious anglers and commercial applications.
Shipping weight: approx. 10.9 kg (24 lbs) – Dimensions: 31 x 19 x 6 in.

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™.