Description
Garmin GT51M-TH 12-Pin Thru-Hull Sonar | Boat Supply Store
Engineered for serious anglers navigating challenging offshore environments, this transducer delivers robust sonar performance across multiple frequencies. It integrates 600W CHIRP Traditional sonar operating at 80-160 kHz for precise depth sounding and bottom structure definition, alongside 500W per element CHIRP ClearV and SideV scanning sonar at 260/455 kHz for detailed underwater imaging. Constructed with a durable stainless steel stem and designed for thru-hull installation, it offers superior target separation and crisp fish arches, even in rough seas.
Key Features
- Superior Sonar Imaging with CHIRP Traditional, ClearV, and SideV for comprehensive underwater views.
- Powerful 600W Traditional Sonar (80-160 kHz) for accurate depth and bottom detail.
- 500W per element Scanning Sonar (260/455 kHz) reveals structure and baitfish.
- Durable Stainless Steel Thru-Hull Mount for robust offshore performance.
- Optimized for Rough Seas to maintain consistent performance in challenging conditions.
- Exceptional Target Separation for clearly distinguishing individual fish and structure.
- Built-in Fast-Response Temperature Sensor for real-time water temperature data.
- 12-Pin Connector for straightforward integration with compatible Garmin MFDs.
Specifications
| Product Specifications | |
|---|---|
| Brand | Garmin |
| Model | GT51M-TH |
| SKU | CWR59950 |
| MPN | 010-01966-10 |
| Connector Type | 12-pin |
| Traditional Sonar Power | 600W |
| Traditional Sonar Frequencies | 80-160 kHz (Mid-Band CHIRP) |
| Scanning Sonar Power | 500W per element |
| Scanning Sonar Frequencies | 260/455 kHz |
| Mounting Type | Thru-Hull |
| Stem Material | Stainless Steel |
| Temperature Sensor | Yes |
| Hull Deadrise Recommendation | Less than 5 degrees |
| Included | Fairing block, isolation plate, bushings, and mounting hardware |
Who This Is For
Coastal and offshore fishermen who require advanced CHIRP sonar capabilities, including Traditional, ClearV, and SideV, in a resilient stainless steel thru-hull transducer. This unit is ideal for boaters operating in challenging sea conditions where reliable underwater data is critical for locating game fish.
How It Compares
| Feature | Garmin GT51M-TH 12-Pin Thru-Hull Sonar | Competitor |
|---|---|---|
| Sonar Type | CHIRP Traditional, CHIRP ClearV, CHIRP SideV | CHIRP (Low/High), CHIRP |
| Traditional Sonar Power | 600W | 1000W, 1000W |
| Scanning Sonar Power | 500W per element | N/A (Dedicated scanning elements not integrated), N/A |
| Traditional Sonar Frequencies | 80-160 kHz (Mid-Band CHIRP) | 42-65 kHz (Low CHIRP), 130-210 kHz (High CHIRP), 85-165 kHz |
| Scanning Sonar Frequencies | 260/455 kHz | N/A (Dedicated scanning elements not integrated), N/A |
| Mounting Type | Thru-Hull | Thru-Hull, Thru-Hull |
| Stem Material | Stainless Steel | Bronze, Bronze |
| Connector Type | 12-pin | Various (often 9-pin or 13-pin depending on configuration), Raymarine specific |
| Temperature Sensor | Yes | Yes, Yes |
| Hull Deadrise Recommendation | Less than 5 degrees | Typically 0-16 degrees (varies by specific model), Typically 0-16 degrees |
Common Concerns Answered
Is the installation of the Garmin GT51M-TH complicated?
The installation of this thru-hull transducer is rated a 4/5 difficulty. It requires drilling into your boat's hull, and precise fairing block placement and sealing are critical for optimal performance and to prevent water ingress. Professional installation is recommended for individuals not experienced with hull modifications.
Does the scanning sonar work well in shallow water?
While the ClearV/SideV scanning sonar offers exceptional detail, some users have found it to be less effective in very shallow water compared to traditional sonar. For shallow water applications, you may find traditional sonar frequencies provide more advantageous readings.
Is the price of the GT51M-TH transducer justified?
The Garmin GT51M-TH transducer is competitively priced for its advanced feature set, including integrated CHIRP Traditional, ClearV, and SideV sonar in a robust stainless steel housing. While the initial investment is significant, its performance in rough offshore conditions and detailed imaging offer substantial value for serious anglers.
Frequently Asked Questions
What is the power output of the Garmin GT51M-TH transducer?
The Garmin GT51M-TH transducer provides 600W of power for its CHIRP Traditional sonar and 500W per element for its CHIRP ClearV/SideV scanning sonar.
What frequencies does the Garmin GT51M-TH transducer operate on?
The transducer operates on Mid-Band CHIRP frequencies from 80-160 kHz for Traditional sonar and 260/455 kHz for ClearV/SideV scanning sonar.
Is the Garmin GT51M-TH suitable for rough sea conditions?
Yes, the Garmin GT51M-TH is specifically designed and optimized for rough sea conditions, offering stable performance and reliable sonar data when you need it most.
What is the hull deadrise recommendation for the Garmin GT51M-TH?
The Garmin GT51M-TH is recommended for hull deadrises less than 5 degrees. This ensures optimal beam angle alignment with the water for accurate sonar returns.
What type of sonar does the Garmin GT51M-TH provide?
The Garmin GT51M-TH provides three distinct types of sonar: CHIRP Traditional, CHIRP ClearV (DownVision), and CHIRP SideV.
