The Garmin GT51M-THP pairs two stainless steel thru-hull transducers to deliver CHIRP DownVü/SideVü and mid-band CHIRP traditional sonar from a single installation. Built for offshore and bluewater hulls with deadrises under 25 degrees, the port and starboard stems mount cleanly through the hull and include every component needed for a complete setup. A fast-response temperature sensor and 12-pin connectors round out a capable package suited to serious fishfinders running compatible Garmin GPSMAP and GSD hardware.

Specifications:

• Transducer type: Stainless steel thru-hull pair
• DownVü/SideVü power rating: 500 W per element (1,500 W total)
• DownVü/SideVü operating frequencies: CHIRP 260/455 kHz
• Traditional CHIRP power rating: 600 W
• Traditional CHIRP operating frequencies: Mid-band CHIRP 80–160 kHz
• Built-in fast-response temperature sensor
• Connector: 12-pin
• Hull deadrise requirement: Less than 25 degrees
• Includes: Port and starboard 12-pin transducers, stainless steel stems, fairing blocks, Y-cable, bushings, mounting hardware, and installation instructions

Compatible Devices:

• GPSMAP® 7607xsv
• GPSMAP® 7608xsv
• GPSMAP® 7610xsv
• GPSMAP® 7612xsv
• GSD™ 25 Premium Sonar Module

Resources

• Owner's Manual (PDF)

⚠️ 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.