Description
Garmin GT20-TM Transducer | Boat Supply Store
For anglers and boaters requiring detailed underwater visualization, this transom-mounted transducer integrates both high-definition DownVü scanning sonar and robust traditional CHIRP sonar. It provides 500W of power for both sonar types, operating at CHIRP 455/800 kHz for DownVü and 77/200 Hz for traditional sonar, allowing for structure identification and fish detection down to 750 ft for DownVü and 1900 ft for traditional. The unit also includes a fast-response temperature sensor, crucial for understanding water conditions while navigating Texas lakes.
Key Features
- Ultra-clear sonar pictures revealing submerged objects, structural details, and fish targets.
- Powerful DownVü 500W CHIRP sonar at 455/800 kHz for high-resolution imaging.
- Versatile Traditional 500W sonar at 77/200 Hz for broad area coverage.
- Integrated fast-response temperature sensor for real-time water temperature data.
- Extended 20 ft transducer cable for flexible installation.
- Complete mounting hardware included for both transom and trolling motor applications.
- Durable transom mounting design engineered for robust marine environments.
- Precise underwater visibility across varied fishing and boating scenarios.
Specifications
| Product Specifications | |
|---|---|
| Power Output | 500W |
| Traditional Sonar Frequencies | 77/200 Hz |
| DownVü Sonar Frequencies | CHIRP 455/800 kHz |
| Transducer Type | Transom Mount |
| Connector | 4-Pin |
| Cable Length | 20 ft |
| Built-in Temperature Sensor | Yes |
| Traditional Depth Range | 1900 ft |
| DownVü Depth Range | 750 ft |
| Transom Angle | 0-70 degrees |
Who This Is For
Anglers and boaters who require detailed underwater imagery for identifying structure and locating fish. Ideal for owners of compatible Garmin fishfinder units seeking versatile transom or trolling motor mounting options.
How It Compares
| Feature | Garmin GT20-TM Transducer | Competitor |
|---|---|---|
| DownVü Sonar | 500W (CHIRP 455/800 kHz) | 500W |
| Traditional Sonar | 500W (77/200 Hz) | 500W |
| Temperature Sensor | Yes (Built-in) | Yes |
| Connector Type | 4-Pin | 8-Pin |
| Depth Range (Traditional) | 1900 ft | — |
| Depth Range (DownVü) | 750 ft | — |
Common Concerns Answered
Is this transducer compatible with all Garmin fishfinders?
No, the Garmin GT20-TM transducer features a 4-pin connector and is designed to be compatible with specific Garmin fishfinder units that also utilize a 4-pin connector. Always verify compatibility with your existing Garmin unit's specifications before purchase.
I'm having trouble getting the best performance. What might be wrong?
Optimal performance from the GT20-TM is highly dependent on correct installation. Ensure the transducer is mounted at the recommended transom angle or trolling motor angle to avoid aeration and interference. Proper securing and alignment are crucial for accurate readings.
Why does it require specific Garmin units?
The 4-pin connector is proprietary to Garmin's sonar systems, ensuring signal integrity and data transfer for their specific fishfinder models. This designed compatibility guarantees the intended functionality and data output between the transducer and the head unit.
Frequently Asked Questions
What is the maximum depth range for the Garmin GT20-TM transducer?
The Garmin GT20-TM transducer offers a maximum depth range of 1900 ft for traditional sonar and 750 ft for DownVü scanning sonar.
What frequencies does the Garmin GT20-TM transducer operate on?
This transducer operates on traditional sonar frequencies of 77/200 Hz and CHIRP DownVü frequencies of 455/800 kHz.
Is the Garmin GT20-TM transducer compatible with all Garmin fishfinders?
No, the GT20-TM is compatible with Garmin fishfinders that feature a 4-pin transducer port. It is essential to check your specific Garmin unit's port type.
What is the power output of the Garmin GT20-TM transducer?
The Garmin GT20-TM transducer has a power output of 500W for both traditional and DownVü sonar modes.
Does the Garmin GT20-TM transducer include temperature sensing capabilities?
Yes, the Garmin GT20-TM transducer features a built-in fast-response temperature sensor that provides real-time water temperature data.
