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Part Number 010-12402-20


Now, fishermen who want clear, crisp fish arches with excellent target separation have a new option for mounting our popular CHIRP transducer. GT15M-TH is available as thru-hull mount perfect for wooden or fiberglass fishing boats with the very first Garmin designed long stem mount transducer that is having good depth performance.

The 8-pin transducer features mid-band CHIRP traditional sonar (85-165 kHz) and has a power rating of 600 W (RMS).

For installation, follow the included instructions carefully to avoid damaging your boat


Frequency CHIRP Mid-band (85-165 kHz)
Power 600 W (RMS)
Beamwidth 24-13
Maximum depth 1,900 ft. freshwater
Depth/Speed/Temperature Depth and Temperature
Number of pins 8-pin
Cable length 15 meters
Supported deadrise 0°- 6° deadrise
  • GT15M-TH transducer
  • Mounting hardware
  • Installation instruction