Garmin GT12M-THF
Overview

LESS TIME FINDING. MORE TIME FISHING.
Designed for reduced drag and optimum sonar performance on midsize fishing and cruising boats, this flush-mounted, 350-watt midband CHIRP transducer clearly defines fish arches, structure and bottom depth returns on your display.
See maximum depth performance to 1,200' in freshwater.
Access CHIRP sonar frequency range from 85–165 kHz.
Search withbeamwidths of 16–24 degrees.
Count on fast-response water temperature sensing.
Thru-hull design offers flush installation with 0-, 12- or 20-degree tilt.
Auto-ID enables simple plug-and-play operation.

See what's happening below the water.

MIDBAND CHIRP TRADITIONAL SONAR
This 8-pin, 350-watt bronze thru-hull transducer features high-definition midband CHIRP sonar that clearly defines fish targets and structure down to 800' in saltwater and 1,200' in freshwater.

BROAD FREQUENCY RANGE
Use the perfect frequency for the waters you're fishing. Covering the medium frequency range, this transducer pulses from 85–165 kHz, displaying a wide coverage area, crisp fish arches and accurate depth readings.

OPTIMUM PING SENSITIVITY
Offering excellent sonar sensitivity, low noise, high resolution and good separation of targets, this robust transducer makes it easier than ever to distinguish fish and structure on your compatible chartplotter display.
In the Box
- GT12M-THF transducer
- Jam nut
- Washer
- Documentation
Specs
General | |
| Transducer frequency | medium band CHIRP (85-165 kHz) |
|---|---|
| Transducer power | 350 W |
| Transducer beamwidth | 24°-16° |
| Transducer maximum depth | 800 ft saltwater; 1200 ft freshwater |
| RapidReturn™ sonar compatible | yes |
| Transducer cable length | 50 ft |
| Transducer depth/speed/temperature | depth, temperature |
| Transducer number of pins | 8-pin |
| Transducer supported deadrise/transom angles | 0° supports hull deadrise angles from 0° to 7° 12° supports hull deadrise angles from 8° to 15° 20° supports hull deadrise angles from 16° to 24° |
| Housing material | bronze |
Transducer Support | |
| Transducer frequency | medium band CHIRP (85-165 kHz) |
|---|---|