Garmin GT20-TM Transom Mount DownVü 500W (CHIRP 455/800kHz) Traditional 500W (77/200 Hz) Transducer w/Temp - 4-Pin

Garmin GT20-TM Transom Mount DownVü 500W Transducer with Temp

Explore crystal-clear sonar imagery beneath your boat with this all-in-one Garmin transducer. The GT20-TM delivers DownVü and traditional chirp scanning in a compact, easy-to-install package, letting you see structure, objects, and fish with unmatched clarity.

Key features at a glance

• Power & Depth: 500 W transducer power with traditional depth up to 1,900 ft and DownVü depth up to 750 ft for broad, reliable scanning.
• Frequency versatility: Traditional mode operates at 77/200 kHz, while DownVü uses CHIRP 455/800 kHz for crisp, high-contrast images.
• Temperature sensing: Built-in fast-response temperature sensor provides real-time water temperature data.
• Flexible mounting: Includes transom and trolling motor mounts with a 0–70° transom angle for optimal fit on a wide range of boats.
• Length & wiring: 20 ft transducer cable for flexible installation and reach; 4-pin connector ensures reliable signal transfer.
• Ready to install: Comes with installation instructions to help you set up quickly and accurately without risking your boat.

Why anglers choose the Garmin GT20-TM

• See below-the-surface activity with DownVü CHIRP clarity and traditional sonar coverage in one compact transducer.
• Accurate water temperature readings to help you adjust tactics on the fly.
• Durable, boat-friendly design with mounting options for transom and trolling motors, plus straightforward installation guidance.

Important notice: This product includes a California Prop 65 warning due to chemicals known to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.