Airmar TM265LH CHIRP 1 kW stern-mount transducer

The Airmar® TM265LH transducer is specifically designed for deep-water fishing. It uses CHIRP broadband technology to provide resolution and target separation that are significantly superior to traditional transducers. This enables precise distinction between baitfish, game fish, and underwater structures, even at significant depths.

The TM265LH integrates CHIRP broadband technology. This technology sweeps a wide range of frequencies to deliver more detailed images and better target separation compared to fixed-frequency transducers.

Thanks to its CHIRP broadband technology, the TM265LH delivers improved resolution and exceptional target separation. It can display clear and distinct fish arches, identify baitfish and gamefish separately, and reveal underwater structure details with high precision.

Yes, the high resolution and target separation provided by the CHIRP broadband technology in the TM265LH make it easier to distinguish baitfish from game fish, as well as to identify other marine life and underwater structures.

The Airmar® TM265LH transducer has a nominal power of 1 kW (1000 Watts RMS), giving it excellent deep-water penetration and detection capabilities.

The TM265LH operates on two CHIRP frequency ranges:

Low frequency (Low CHIRP): 42–65 kHz, ideal for deep-water detection. High frequency (High CHIRP): 130–210 kHz, providing excellent detail resolution and target separation in shallower waters.

The TM265LH offers variable beam angles depending on frequency:

Low frequency (Low CHIRP): Beam angle ranges from 25° to 16°. High frequency (High CHIRP): Beam angle ranges from 10° to 6°.

Yes, the Airmar® TM265LH transducer is built with a rugged urethane housing and is fully waterproof, making it suitable for prolonged use in marine and saltwater environments.

The Airmar® TM265LH transducer housing is made of urethane, a durable material resistant to harsh marine conditions, including exposure to saltwater and UV rays.

Yes, the Airmar® TM265LH transducer includes a fast-response water temperature sensor, providing accurate data to your display.

Yes, the Airmar® TM265LH transducer is supplied with its transom mounting bracket and all required installation hardware.

Mounting the TM265LH on the transom offers several advantages:

Simplified installation: No hull drilling below the waterline is required, reducing the risk of water ingress.Easy maintenance: The transducer is easily accessible for cleaning or servicing.Optimal performance: When properly installed, it delivers excellent performance even at high speeds by avoiding turbulence.

The TM265LH is compatible with Garmin chartplotters and fishfinder modules featuring CHIRP 1 kW technology and a 12-pin connector. This typically includes the Garmin GPSMAP series (e.g., 8400/8600, 7x16, 10x2, 12x2) and ECHOMAP Ultra/UHD models, as well as the Garmin GSD25 and GSD26 black box fishfinder modules.

The Airmar® TM265LH transducer is equipped with a Garmin 12-pin connector, providing a direct and secure connection with compatible Garmin devices.

This depends on your Garmin device. Some newer Garmin chartplotters/depth sounders (such as certain GPSMAP or ECHOMAP Ultra/UHD series) already include a 1 kW CHIRP sonar module. For other devices, an external sonar module like the Garmin GSD25 or GSD26 will be required to fully utilize the TM265LH’s capabilities.

The Airmar® TM265LH transducer is specifically designed with a Garmin 12-pin connector and optimized for Garmin systems. While adapters may exist for other brands, compatibility and optimal performance are only guaranteed with compatible Garmin systems.

Key steps include:

Select a location on the transom that minimizes turbulence and interference.Drill the required holes and use the provided hardware to secure the mounting bracket.Install the transducer on the bracket, adjusting the angle so it is parallel to the waterline.Run the cable inside the boat and connect it to your Garmin fishfinder or sounder module.Test the installation to ensure a clear, interference-free reading.

For optimal performance, choose a location on the stern that is:

Away from propellers, keels, water intakes, or anything that could create turbulence.In an area where the water flow is most laminar (smooth) when the boat is moving.Low enough that the transducer remains submerged at all times, even at high speed.Accessible for mounting and cable routing.

Installing a transom-mount transducer like the TM265LH is usually doable by a skilled DIYer, but it requires basic tools (drill, screwdriver) and a solid understanding of the instructions. To ensure optimal performance and avoid damaging your boat, always consult a professional if you’re unsure about your skills.