The CM265LH combines low- and high-frequency CHIRP technology to deliver excellent target resolution and reliable bottom discrimination across a wide range of depths. The low-frequency array operates between 42 and 65 kHz for strong deep-water penetration, while the high-frequency ceramic operates between 130 and 210 kHz with a narrow beam that improves target separation and structure definition.

This wide frequency coverage includes commonly used fishing frequencies such as 50 kHz and 200 kHz, while also providing the full CHIRP bandwidth for improved detection of bait schools and individual fish targets.

The CM265LH features a SEALCAST™ seamless urethane housing, specifically designed for installation in cavities, welded tanks, or wet-box systems on metal hull vessels. This robust construction protects the transducer elements and ensures reliable long-term performance in demanding marine environments.

The transducer integrates depth and fast-response temperature sensing, providing valuable environmental data for fishing and commercial operations. It is available with Furuno connectors or Mix-and-Match™ cable systems, allowing flexible integration with compatible sounders.

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™.