Garmin GT20‑TM — Marine Transducer (Traditional + CHIRP ClearVü)

Perfect sonar upgrade for shallow water fishing — gives clear traditional fish arches and high‑resolution CHIRP ClearVü images of structure and fish under your boat.

Key Features

Dual‑mode sonar: Traditional 77/200 kHz plus CHIRP ClearVü for detailed downward imaging.

Deep reach: Traditional sonar up to 1,900 ft; ClearVü up to 750 ft.

Built‑in temperature sensor: Fast‑response water temperature data via the transducer cable.

Mounting options: Compatible with transom or trolling motor installations.

Wide beam coverage: Traditional and ClearVü beam patterns for target separation and structure clarity.

⚙️ Specs (Typical)

Power Rating: 500 W (traditional & ClearVü)

Frequencies: Traditional 77/200 kHz; ClearVü CHIRP 455/800 kHz

Max Depth: ~1,900 ft traditional, ~750 ft ClearVü

Cable Length: 20 ft with temperature sensor

Pins: 4‑pin or 8‑pin versions available for compatibility with diverse Garmin fishfinders/navigation units

Mounting Angle: Supports 0°–70° transom angles

What’s in the Box

GT20‑TM transducer unit

Transom mount hardware

Trolling motor mount hardware

Installation documentation