Imagine gliding through shallow coastal waters, pinpointing fish hiding near structures or schools darting off to the sides of your boat—all with crystal-clear sonar imagery that rivals a snapshot. The Garmin GT50M-TM transom mount transducer delivers exactly that, blending powerful traditional CHIRP sonar with advanced CHIRP ClearVü and SideVü scanning for anglers who demand precision in tricky inshore environments.

Unlock Superior Shallow-Water Performance

Crafted for boats navigating depths where standard sonar falls short, this transducer shines in bays, estuaries, and nearshore reefs. Its mid-band CHIRP traditional sonar excels at displaying classic fish arches with exceptional separation, while the DownVü and SideVü elements paint photo-like views of the bottom, wrecks, and baitfish pods below and beside your vessel. A built-in temperature sensor adds real-time water data, helping you track thermoclines and locate active fish zones.

Key Advantages for Serious Anglers

• Versatile Scanning Coverage: Spot fish and structure from directly beneath to over 500 feet sideways, ideal for targeting flounder flats or ambushing reds along drop-offs.
• Optimized Power Output: 300W traditional CHIRP for reliable arches up to 1,500 feet, paired with 500W per element (1,500W total) for DownVü/SideVü—delivering sharper images without overwhelming smaller chartplotters.
• Shallow-Depth Mastery: Frequencies tuned for crisp detail in 10-100 foot waters, where beam spread and resolution matter most.
• Rugged Transom Design: Handles 0° to 70° deadrise angles, ensuring stable performance on most hulls, with a 30-foot cable for flexible routing.

Detailed Technical Specs

Seamless Installation Tips for Peak Results

Mounting is straightforward with included hardware: position the bracket 1/3 from transom center, angle slightly downward for optimal water flow, and secure firmly to avoid vibration. Route the cable away from electrical noise sources like engines or bilge pumps. Proper setup minimizes air bubbles and maximizes bottom lock, giving you reliable reads from trolling speeds to drift fishing.

Elevate Your Inshore Game

Whether chasing speckled trout in grassy shallows or mapping oyster beds for sheepshead, the GT50M-TM transforms your Garmin display into a fish-finding powerhouse. Anglers report spotting subtle bottom changes and separated targets that older transducers blur, leading to more hookups and less guesswork. Pair it with adjustable gain settings for tuned performance across conditions, from murky tides to gin-clear flats.