Description
Garmin GT51M-THP SS TH Pair Sonar Transducer | Boat Supply Store
Engineered for serious anglers, this Garmin GT51M-THP thru-hull transducer pair delivers unparalleled underwater visualization with 500W CHIRP DownV/SideV sonar operating at 260/455kHz for high-definition imaging, and 600W Traditional CHIRP sonar in the 80-160kHz mid-band for robust depth penetration. Its robust stainless steel construction ensures durability in harsh marine environments, making it ideal for detecting submerged structures, bottom contours, and actively pursuing gamefish in offshore and nearshore waters.
Key Features
- Unrivaled Imaging with ultra-clear sonar pictures of objects, structure, and fish
- Exceptional Depth performance optimized for various marine conditions
- High-Definition SideV/DownV CHIRP elements provide 500 W per element (1,500 W total) at 260/455 kHz
- Powerful Traditional Sonar with 600 W at mid-band CHIRP 80-160 kHz
- Integrated Temperature Sensing with a fast-response sensor
- Hull Deadrise Adaptability suitable for hulls with less than 25 degrees of deadrise
- Complete Thru-Hull Kit includes port/starboard transducers with stainless steel stems, fairing blocks, Y-cable, bushings, and mounting hardware
- Durable Stainless Steel Construction built to withstand rigorous offshore use
Specifications
| Product Specifications | |
|---|---|
| DownV/SideV Power | 500W per element (1,500 W total) |
| DownV/SideV Frequencies | 260/455 kHz |
| Traditional Power | 600W |
| Traditional Frequencies | Mid-band CHIRP 80-160kHz |
| Connector Type | 12-pin |
| Hull Deadrise Compatibility | < 25 degrees |
| Temperature Sensor | Yes |
Who This Is For
Serious anglers and boaters demanding high-definition sonar imaging for structure, bottom contour, and fish detection. This transducer pair is optimized for vessels with hull deadrises less than 25 degrees and compatible Garmin GPS units.
How It Compares
| Feature | Garmin GT51M-THP SS TH Pair Sonar Transducer | Competitor |
|---|---|---|
| Sonar Type | CHIRP DownV/SideV & Traditional CHIRP | Traditional Dual Frequency |
| DownV/SideV Capability | Yes | No |
| DownV/SideV Power | 500W per element (1500W total) | Typically less capable |
| Traditional CHIRP Power | 600W | 1000W |
| Traditional CHIRP Frequencies | 80-160 kHz (Mid-band) | 50 kHz & 200 kHz |
| DownV/SideV Frequencies | 260/455 kHz | Typically less capable |
| Temperature Sensor | Yes | Yes |
| Hull Deadrise Compatibility | Less than 25 degrees | Up to 25 degrees |
| Connector Type | 12-pin | 8-pin |
Common Concerns Answered
Is installation straightforward?
Installation of this thru-hull transducer pair can be complex, requiring precise drilling and alignment with fairing blocks. We recommend professional installation for individuals not experienced with hull penetrations to ensure optimal performance and watertight integrity.
Will this transducer work with my boat's hull?
The GT51M-THP is designed for hull deadrises less than 25 degrees. Performance can be influenced by hull design and the precise installation angle, making careful consideration of your vessel's characteristics essential.
Can I get finer detail with this transducer?
While the GT51M-THP offers excellent resolution, some users express a desire for even higher frequency options for extremely fine detail. This unit balances high-definition imaging with robust depth performance.
Frequently Asked Questions
What is the total power output of the GT51M-THP transducers?
The GT51M-THP transducer pair delivers 500W per element for DownV/SideV sonar, totaling 1,500W, and 600W for traditional sonar.
What frequencies does the GT51M-THP transducer operate on?
The DownV/SideV elements operate at 260/455 kHz, and the traditional CHIRP sonar operates in the mid-band frequency range of 80-160 kHz.
Is the GT51M-THP suitable for all hull deadrises?
No, the GT51M-THP is specifically designed for hull deadrises less than 25 degrees.
What Garmin GPS units are compatible with the GT51M-THP?
This transducer is compatible with a range of Garmin GPS units that feature a 12-pin transducer port. Refer to the Garmin compatibility chart for specific models.
Does the GT51M-THP include a temperature sensor?
Yes, the Garmin GT51M-THP features a built-in fast-response temperature sensor.
