Garmin GT15M-TH is a powerful CHIRP thru-hull transducer designed for anglers who want sharp bottom definition, clear fish arches, and excellent target separation – even at greater depths. With a mid-band CHIRP range (85–165 kHz) and a power rating of 600 W, it delivers clear sonar images and stable performance for fishing at depths of up to approx. 300 meters / 580 m in freshwater.
The transducer is designed for thru-hull mounting and comes in a robust bronze housing, making it ideal for wooden boats and installations where durability and signal stability are a high priority. It measures both depth and temperature, and the wide CHIRP frequency spectrum provides superb separation of fish and structures beneath the boat.
