Humminbird XNT-9-HW-MSI-150-T MEGA SI/DI Dual Spectrum CHIRP Transducer w/Temp f/HELIX® 7/8 MEGA SI

Upgrade your fishing setup with the Humminbird XNT-9-HW-MSI-150-T transducer, a powerhouse for serious anglers chasing crystal-clear underwater views. This transom-mount marvel combines MEGA Side Imaging, Down Imaging, and Dual Spectrum CHIRP sonar to deliver unmatched detail on fish-holding structures, bait schools, and bottom contours. Whether you're navigating shallow bays or deep lakes, its advanced frequencies cut through the water like a knife, helping you pinpoint trophy fish with ease.

Why Anglers Choose the XNT-9-HW-MSI-150-T for HELIX 7 and 8 Series

Designed specifically for Humminbird HELIX 7 CHIRP MEGA SI GPS G3, G3N, and HELIX 8 CHIRP MEGA SI GPS G3N units, this 7-pin transducer slots right into your existing setup. The built-in temperature sensor gives you real-time water temp readings, crucial for dialing in lure choices or tracking thermoclines where big fish hang out. Its rugged composite housing laughs off rocks, logs, and accidental bumps, while the impact-release mounting bracket keeps things secure yet forgiving during those rough trailering days.

What sets it apart? The Dual Spectrum CHIRP operates across a versatile 150-220 kHz range—full coverage from 150-220 kHz, narrow beam at 180-240 kHz for precision, and wide at 140-200 kHz for broad scans. Paired with MEGA Imaging, you get hyper-detailed side views up to 250 feet side-to-side and down views to 75 feet, all without the noise of traditional sonar.

Key Performance Specs at a Glance

Real-World Benefits for Better Fishing Days

• Spot Hidden Honey Holes: MEGA Side Imaging reveals submerged trees, drop-offs, and wrecks from up to 125 feet on each side, turning guesswork into precision targeting.
• Vertical Precision: Down Imaging slices straight down, showing fish arches and structure in photo-like clarity—even in murky water.
• Adaptable 2D Sonar: Switch between wide, narrow, or full CHIRP modes to match conditions, from shallow weedy flats to deep reservoirs.
• Durability Built-In: The composite build and 20-foot cable handle daily abuse, with easy transom installation that saves time on the water.
• Temp Tracking: Monitor surface water changes to predict fish movement, especially during turnover seasons.

Quick Setup Tips for Optimal Results

Mount it on your transom about 1/8 inch below the hull bottom for best performance, keeping it clear of strakes or trim tabs. Angle it slightly downward (around 5-10 degrees) to follow the deadrise. Run the 20-foot cable inside the hull or along gunwales, securing it away from electrical noise. Test in shallow water first to fine-tune gain and ensure bubble-free operation. Pro anglers swear by keeping the transducer surface waxed for reduced drag and cleaner signals.

This transducer transforms your HELIX into a fish-finding machine, stacking the odds in your favor for limits every trip. It's not just gear—it's your edge on the water.