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Humminbird

XM 9 HW MDI T - HELIX MEGA DI+, Dual Spectrum CHIRP w/ Temp Transom Transducer

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Transom-mount Transducer

For HELIX MEGA DI+ systems

Mega Down

Imaging+ support at 800 kHz,

Dual Spectrum

150–220 kHz CHIRP range

Includes Built-in

Temperature sensor

Humminbird Xm

9 HW MDI T transducer

$289.99
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SKU: 1102961

Overview

This transom-mount transducer is built for anglers who want detailed sonar information from a single setup. It combines MEGA Down Imaging+ at 800 kHz, 455 kHz, and 1.2 MHz with Dual Spectrum CHIRP 2D sonar covering a 150–220 kHz range, giving compatible Humminbird HELIX units multiple viewing options on the water. The built-in temperature sensor adds another useful data point for reading conditions while fishing. It is a practical choice for boat owners looking to expand their sonar capabilities without adding unnecessary complexity.

Why Hunters Choose the Humminbird

Transom-mount Design

Suits straightforward installation on the

Supports Mega

Down Imaging+ at 800 kHz,

Includes Dual

150–220 kHz range

Built-in Temperature

Sensor adds an extra data

Transom-mount Transducer

For HELIX MEGA DI+ systems

Key Features

  • Transom-mount transducer for HELIX MEGA DI+ systems.
  • MEGA Down Imaging+ support at 800 kHz, 455 kHz, and 1.2 MHz.
  • Dual Spectrum CHIRP 2D sonar with 150–220 kHz CHIRP range.
  • Includes a built-in temperature sensor.
  • Humminbird XM 9 HW MDI T transducer model.

Best Used For

  • Boat owners needing a transom-mounted transducer for compatible Humminbird HELIX MEGA DI+ systems
  • Anglers who want MEGA Down Imaging+ and Dual Spectrum CHIRP sonar in one transducer
  • Users tracking water temperature alongside sonar readings during fishing trips
  • Installers replacing or upgrading a transom transducer on a sonar-equipped fishing boat

Specifications

Chirp Range150-220kHz
Mega Down Imaging800kHz/455 kHz and 1.2 MHz
Mount TypeTransom Mount
Sonar TypeDual Spectrum CHIRP 2D Sonar
Temperature SensorBuilt-in temperature sensor

Pros

  • Transom-mount design suits straightforward installation on the stern.
  • Supports MEGA Down Imaging+ at 800 kHz, 455 kHz, and 1.2 MHz.
  • Includes Dual Spectrum CHIRP 2D sonar with 150–220 kHz range.
  • Built-in temperature sensor adds an extra data point on the water.

Considerations & Trade-offs

  • Designed as a transom-mount transducer, so it is intended for that mounting style rather than a universal fit across every boat setup.
  • Its feature set is centered on MEGA Down Imaging+ and Dual Spectrum CHIRP 2D sonar, so buyers looking for a different sonar format may need a different model.
  • The product information does not include installation hardware, cable length, or compatibility details, so those points should be verified before purchase.
  • The built-in temperature sensor is included, but the listing does not specify any additional environmental or navigation functions beyond that sensor.

Suggested Comparisons

  • Transom-mount transducers
  • Down imaging sonar accessories
  • CHIRP 2D sonar transducers
  • Temperature-sensor transducers

Suggested Accessories

  • Transom-mount transducer bracket
  • Sonar display unit
  • Transducer mounting hardware
  • Cable management accessories

Frequently Asked Questions

What sonar modes does this transducer support?

It is listed with MEGA Down Imaging+ and Dual Spectrum CHIRP 2D Sonar.

What CHIRP range is provided?

The product data lists a CHIRP range of 150–220 kHz.

Does this transducer include temperature sensing?

Yes. The description says it includes a built-in temperature sensor.

What mounting style is this transducer designed for?

It is a transom mount transducer.

What frequency information is provided for MEGA Down Imaging+?

The listed MEGA Down Imaging+ frequencies are 800 kHz/455 kHz and 1.2 MHz.