Designed to glide effortlessly through water while delivering exceptional sonar returns, the Garmin GT17M-THF combines 1 kW mid-band CHIRP power with a precision-tuned 80–165 kHz frequency range. It paints a detailed picture of underwater life—revealing clear fish arches, structure, and bottom contours, even in deep water.

Whether you’re exploring saltwater depths up to 550 m or freshwater terrains down to 730 m, this stainless steel, flush-mounted transducer stays efficient and low-profile. It includes advanced water temperature sensing, and beamwidth control (9°–18°) sharpens your target separation, while Garmin’s Auto-ID technology ensures plug-and-go setup.

Built to adapt, it's compatible with a variety of hull materials and deadrise angles (0°–24°), and ships with a full set of installation hardware for seamless mounting.

• Garmin GT17M-THF Transducer
• Jam nut
• Spacer
• 2 washers
• 2 set screws
• Thread isolator
• Hull isolator
• Documentation

Transducer Frequency: Medium-band CHIRP (80–165 kHz)

Transducer Power: 1 kW

Transducer Beamwidth: 9°–18°

Maximum Depth:

• Saltwater: 550 m
• Freshwater: 730 m

RapidReturn™ Sonar Compatible: Yes

Cable Length: 15 m

Depth/Speed/Temperature: Depth and temperature

Number of Pins: 8-pin

Supported Deadrise/Transom Angles:

• 0°,  12° & 20°

Housing Material: Stainless steel

Mounting Style: Thru-hull, flush-mounted