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Humminbird

XPTH 9 HW MSI T - HELIX MEGA SI+, DI+, Dual Spectrum CHIRP w/ Temp Plastic Thru Hull Transducer

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

Plastic Thru-hull

Transducer design for compatible Humminbird

Mega Side

Imaging+ and MEGA Down Imaging+

Supports 800

KHz, 455 kHz, and 1.2

Dual Spectrum

A 150–220 kHz range

Includes Built-in

Temperature sensor

$529.99
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SKU: 1102965

Overview

Built for anglers who want a clean through-hull installation, this plastic transducer supports MEGA Side Imaging+, MEGA Down Imaging+, and Dual Spectrum CHIRP 2D sonar in one setup. It is designed to work with compatible Humminbird HELIX systems and includes a built-in temperature sensor for added on-water information. The sonar package covers MEGA imaging frequencies at 800 kHz, 455 kHz, and 1.2 MHz, along with a CHIRP range of 150–220 kHz. This is a practical choice for boaters who want advanced sonar capability without adding clutter below the hull.

Why Hunters Choose the Humminbird

Mega Side

Imaging+ and MEGA Down Imaging+

Dual Spectrum

CHIRP 2D sonar adds flexible

Supports 800khz,

455 kHz, and 1.2 MHz

Chirp Range

Of 150–220 kHz is specified

Built-in Temperature

Sensor adds useful water temperature

Key Features

  • Plastic thru-hull transducer design for compatible Humminbird HELIX systems.
  • MEGA Side Imaging+ and MEGA Down Imaging+ are included.
  • Supports 800 kHz, 455 kHz, and 1.2 MHz sonar frequencies.
  • Dual Spectrum CHIRP 2D sonar with a 150–220 kHz range.
  • Includes a built-in temperature sensor.

Best Used For

  • Boat anglers needing a plastic thru-hull transducer for compatible Humminbird HELIX sonar systems.
  • Users wanting MEGA Side Imaging+ and MEGA Down Imaging+ for detailed underwater viewing.
  • Anglers who rely on Dual Spectrum CHIRP 2D sonar for broad search and target separation.
  • Boat operators who want built-in temperature readings as part of their sonar setup.

Specifications

Built In Temperature SensorYes
Chirp Range150-220kHz
Down Imaging Frequency1.2 MHz
Mega Down ImagingYes
Mega Side ImagingYes
Side Imaging Frequencies800kHz/455 kHz
Sonar TypeDual Spectrum CHIRP 2D Sonar
Transducer TypePlastic Thru Hull

Pros

  • MEGA Side Imaging+ and MEGA Down Imaging+ provide detailed sonar views.
  • Dual Spectrum CHIRP 2D sonar adds flexible target coverage.
  • Supports 800kHz, 455 kHz, and 1.2 MHz sonar frequencies.
  • CHIRP range of 150–220 kHz is specified in the product data.
  • Built-in temperature sensor adds useful water temperature information.
  • Plastic thru-hull design suits compatible marine installations.

Considerations & Trade-offs

  • Requires a compatible HELIX MEGA SI+, DI+ system; it is not a standalone sonar unit.
  • Plastic thru-hull installation is a permanent mounting approach, so placement and access should be planned carefully.
  • This transducer is built around specific MEGA Side Imaging+, MEGA Down Imaging+, and Dual Spectrum CHIRP frequencies, so it is best suited to users who want those exact sonar modes.
  • The built-in temperature sensor adds useful data, but it does not replace a dedicated onboard temperature monitoring setup if one is already in use.

Suggested Comparisons

  • Transom-mount transducers
  • In-hull transducers
  • Through-hull transducers
  • Fish finder transducer accessories

Suggested Accessories

  • Transducer mounting hardware
  • Sonar display unit
  • Cable management accessories
  • Marine sealant

Frequently Asked Questions

What sonar technologies does this transducer support?

It supports MEGA Side Imaging+, MEGA Down Imaging+, and Dual Spectrum CHIRP 2D sonar.

What CHIRP range is listed for this model?

The listed CHIRP range is 150-220 kHz.

Does this transducer include temperature sensing?

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

What frequencies are listed for the imaging functions?

The source data lists 800 kHz, 455 kHz, and 1.2 MHz.

What type of transducer is this?

It is a plastic thru hull transducer.