Garmin GT30-TM Transom Mount Transducer
Enhance your fishing experience with the Garmin GT21-TM Transom Mount Transducer. This advanced transducer combines traditional sonar with ClearVü scanning technology, providing exceptionally clear fish arches and detailed underwater structure definition. It offers robust power output with 600W traditional sonar and 500W ClearVü scanning across multiple frequencies. Designed for easy transom mounting, it also features a built-in, fast-response temperature sensor for essential fishing data. The 8-pin connector ensures reliable connectivity for your Garmin fishfinder.
$149.99
Owner Satisfaction
4.4
/ 5
Category Rank
140
/ 167
#140 in Fish Finders
Price vs Category Average
-85%
Below average
Mounting Style
Transom
/ Transom
Who it's for
- High-Definition Scanning Sonar
- Easy Transom Mounting
- Multi-Frequency Capability
Who should skip it
- Performance Limitations at Speed
- Susceptible to Physical Damage
- Specific Connector Requirement
Key Specs
Mounting Style
Transom
Sonar Types
Traditional Sonar, ClearVü (Down Imaging)
Cable Length
30 feet
Connector Pins
8-pin
Traditional Sonar Frequencies
50/200kHz
ClearVü Sonar Frequencies
260/455kHz
Weight
Approximately 2.8 lbs (1.27 kg)
Temperature Sensor
Included
Features
- Clear fish arches and target separation
- Detailed structure definition below boat
- Combines traditional and ClearVü sonar
- Built-in fast response temperature sensor
- Designed for transom mounting
- Powerful 600W traditional sonar
- 500W ClearVü scanning power
- 8-pin connector for reliable data
What customers say
Customers overwhelmingly view the Garmin GT30-TM Transducer as an essential, high-performance upgrade. The core praise centers on the exceptional clarity and detail delivered by the ClearVü and SideVü scanning sonar. Users report sharp images that easily differentiate structure, timber, and individual fish arches, calling this clarity a significant enhancement to fishing success. Traditional CHIRP sonar also earns high marks for reliable depth tracking and target separation. While installation is generally manageable, some users noted minor challenges achieving consistent high-speed readings dependent on precise mounting. A few expressed slight concerns regarding the long-term durability of the plastic bracket and cable connection under harsh conditions. Ultimately, the superior underwater imaging capability solidifies this transducer as a worthwhile investment for serious anglers.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$150