Shopping security
Imagine gliding across the water, your boat's trolling motor humming quietly as you zero in on schools of fish hidden beneath the surface. The Humminbird XTM-9-HW-MDI-T transducer transforms your HELIX fishfinder into a powerhouse of precision sonar imaging. Engineered specifically for trolling motor mounts, this rugged unit delivers MEGA Down Imaging+ alongside Dual Spectrum CHIRP sonar, giving you the edge to spot structure, baitfish, and trophy catches with unmatched detail.
What sets this transducer apart is its ability to paint a vivid picture of the underwater world. MEGA DI+ at 1.2 MHz (1075-1150 kHz) reaches depths up to 200 feet with hyper-detailed resolution, perfect for picking out subtle bottom contours or suspended gamefish in shallow bays. Pair it with Dual Spectrum CHIRP's versatile 150-220 kHz range, and you're scanning down to 1200 feet—full coverage for deep-water hunts or wide-area searches.
Built tough for the demands of serious anglers, this 7-pin transducer features a composite housing that withstands rough waters, impacts from debris, and constant exposure to saltwater. The included 20-foot cable provides ample reach for clean routing, while stainless steel clamp rings ensure a secure fit on most trolling motors.
| Specification | Details |
|---|---|
| Mounting Location | Trolling Motor |
| Operating Frequencies | Dual Spectrum CHIRP: 150-220 kHz (Full), 180-240 kHz (Narrow), 140-200 kHz (Wide); MEGA DI+: 1075-1150 kHz; 455 kHz (440-500 kHz); 800 kHz (790-850 kHz) |
| Maximum Depth | Dual Spectrum CHIRP: 1200 ft (365 m); MEGA DI+: 200 ft (61 m); 800 kHz: 125 ft (38 m); 455 kHz: 400 ft (122 m) |
| Cable Length | 20 feet |
| Additional Features | Built-in temperature sensor, power line noise filter |
Every detail is optimized for reliability—from the integrated temp sensor that tracks water conditions in real-time to the power line noise filter that keeps your sonar readings clean and interference-free, even in busy boating areas.
This transducer is a perfect match for HELIX 8, 9, 10, and 12 CHIRP G3N models equipped with MEGA DI and MEGA SI+ capabilities. It plugs right into the 7-pin connector, unlocking advanced imaging without needing adapters or extra hardware. Whether you're running a compact setup on a kayak or a full-featured console on your bass boat, it integrates effortlessly to elevate your fishfinding game.
Setting up the XTM-9-HW-MDI-T is straightforward for DIY enthusiasts. Start by selecting a smooth section on your trolling motor shaft, typically 12-18 inches below the waterline when deployed. Secure the transducer using the provided stainless clamp rings—tight but not overtightened to allow for vibration absorption. Route the cable along the motor arm, securing it with zip ties to avoid prop wash interference.
Pro tip: Align the transducer face parallel to the bottom for optimal Down Imaging. Test in shallow water first, adjusting for any air bubbles or cavitation. With its rugged design, it's ready for immediate use in freshwater or saltwater pursuits.
Crafted in the USA with a focus on durability, the XTM-9-HW-MDI-T stands up to the harshest conditions—think rocky bottoms, heavy waves, or prolonged sun exposure. Anglers report sharper fish arches with Dual Spectrum CHIRP, revealing schools that traditional sonar misses, while MEGA DI+ excels at mapping weed edges and drop-offs. It's not just equipment; it's the tool that turns good days into limits.
Simple habits like these ensure years of peak performance, maximizing your investment in premium sonar tech.
MEGA DI+ operates at higher frequencies up to 1.2 MHz, delivering finer image resolution for detecting smaller fish and precise structure details compared to 455/800 kHz options.
Yes, its rugged composite design and stainless hardware handle corrosive saltwater environments when rinsed properly after use.
It reaches up to 1200 feet (365 meters), ideal for offshore or deep lake applications with clear separation of fish and bottom.
Absolutely, the built-in temp sensor provides real-time water temperature readings directly on your HELIX display.
It's optimized for HELIX G3N series with MEGA capabilities; check your model's specs for full compatibility.
At 20 feet, it offers plenty of flexibility for routing from trolling motor to helm on boats up to 25 feet.
Humminbird has built its reputation by designing and manufacturing top quality, thoroughly reliable marine equipment. Your Humminbird is designed for trouble-free use in even the harshest marine environment. We encourage you to read this manual carefully in order to get the full benefit from all the features and applications of your Humminbird product.
XTM-9-HW-MDI-T MEGA DI+ Dual Spectrum CHIRP Trolling Motor Transducer with Temp for HELIX® MEGA DI
MEGA Down Imaging+ Trolling Motor Transducer supports MEGA Imaging+/800kHz/455kHz and Dual Spectrum CHIRP 2D Sonar with a CHIRP range of 150-220kHz. Includes built-in temperature sensor, rugged composite design, trolling motor mounting hardware and 20’ cable.
This accessory is compatible with the following Humminbird products: HELIX 8 CHIRP G3N Series, MEGA DI and MEGA SI+, HELIX 9 CHIRP G3N Series MEGA DI and MEGA SI+, HELIX 10 CHIRP G3N Series MEGA DI and MEGA SI+, HELIX 12 CHIRP G3N Series MEGA DI and MEGA SI+.
Features:
WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
US$40
Get nowSign up to your membership to get coupons up to
15%
Get nowOpportunity to enjoy order discount up to 15% off
Top-Converting Item to Boost Your Average Order