The Garmin GT15M-TH brings mid-band CHIRP sonar to wooden fishing boats via a bronze thru-hull installation. Running across an 85–165 kHz sweep, it delivers crisp bottom definition, well-formed fish arches, and solid target separation to depths of 1,000 feet — capable hardware for serious bottom fishing and structure exploration.

Specifications:

• Connector: 8-pin
• Sonar type: Mid-band CHIRP traditional sonar
• Frequency range: 85–165 kHz
• Power rating: 600 W
• Maximum depth: 1,000 feet
• Housing material: Bronze
• Mount type: Thru-hull
• Stem material: Bronze
• Ideal for: Wooden fishing boats

In the Box:

• GT15M-TH transducer
• Thru-hull mount
• Mounting hardware
• Documentation

⚠️ California Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.