Humminbird Transom Temperature Transducer for HELIX 7 – MEGA Side/Down Imaging + Dual CHIRP

Overview

The Humminbird Transom Temperature Transducer, designed for HELIX 7 with MEGA imaging, expands your sonar toolkit without adding clutter. This transom-mount unit combines MEGA Side Imaging, MEGA Down Imaging, and Dual Spectrum CHIRP 2D sonar with a built-in temperature sensor. The result is a versatile sensing system that helps you read water, structure, and activity more clearly as you fish or explore new waters.

Compatible with HELIX 7 CHIRP MEGA SI GPS G3 and G3N models, this transducer is built for a clean hull fit and reliable readings. A 20-foot cable gives you flexible routing for a tidy installation, whether you’re mounting on a bass boat, aluminum craft, or freshwater rig. The integration is designed to minimize interference while maximizing sonar performance across a wide range of depths and distances.

What you get

• Transom-mount design supports MEGA Side Imaging, MEGA Down Imaging, and Dual Spectrum CHIRP 2D sonar for broad coverage and precise targets.
• MEGA Side Imaging delivers expansive, picture-like views up to about 250 feet per side, helping you spot structure and lure-ready zones from a distance.
• MEGA Down Imaging shows crisp bottom detail down to roughly 75 feet, assisting with depth perception and habitat reading.
• Dual Spectrum CHIRP Sonar provides clear fish arches and solid target separation with depths up to 1200 feet under ideal conditions.
• Built-in temperature sensor provides water temperature data without extra accessories, supporting on-the-water decision making.
• Ready-to-install package includes a 20-foot cable for flexible mounting and clean routing.

Ideal use scenarios

Whether you’re mapping structure, scanning weedlines, or tracking congregating fish, this transducer adds layers of useful information. The combination of MEGA imaging modes and CHIRP helps you form a more complete picture of what’s happening below and around the boat, without relying on guesswork.

• Scan shorelines and drop-offs at dawn or dusk to observe habitat and potential routes for fish.
• Monitor water temperature trends as seasons shift, aiding in planning and timing for outings.
• Investigate underwater features while keeping the hull tidy with a straightforward install.
• Use wide-area imaging alongside precise CHIRP returns to differentiate structure from schools or cover.

Connectivity and compatibility

Engineered for HELIX 7 CHIRP MEGA SI GPS systems, including G3, G3N, and G4N families, the XNT 9 HW MSI 150 T integrates cleanly with existing rigs. The 20-foot cable supports flexible layouts beneath decks, along gunnels, or near transom areas, reducing clutter while preserving signal quality.