The Garmin GT51M-TH is a stainless steel thru-hull transducer built for coastal and offshore anglers who demand CHIRP traditional sonar alongside CHIRP ClearVü and CHIRP SideVü scanning sonar. The stainless steel stem construction holds up in rough sea conditions, while the transducer delivers sharp fish arches, precise target separation, and detailed imagery of structure and fish both below and to either side of the hull. Designed for hull deadrises less than 5 degrees.

Specifications:

• Model: GT51M-TH
• Mount Type: Thru-hull with stainless steel stem
• Connector: 12-pin
• ClearVü/SideVü Power: 500 W per element
• ClearVü/SideVü Operating Frequencies: CHIRP 260/455 kHz
• Traditional CHIRP Sonar Power: 600 W
• Traditional CHIRP Operating Frequencies: Mid-band CHIRP 80–160 kHz
• Temperature Sensor: Built-in fast-response
• Hull Deadrise Compatibility: Less than 5 degrees

In the Box:

• 12-pin transducer with stainless steel stem
• Fairing block
• Isolation plate and bushings
• Mounting hardware
• Installation instructions

Resources:

• Owner's Manual (PDF)

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